List of Telecom Acronyms
Fast Access by initial character
A B C D E F G H I
J K L M N
O P Q R S
T U V W X
Y Z
A
- A/M
- Agent/Manager
- AAB
- Automatic Alternative Billing
- AAL
- ATM Adaptation Layer [procedures to map ATM layer information into
higher levels]
- ABI
- Application Binary Interface
- ABR
- Available Bit Rate [vs. CBR or VBR]
- ABS
- Alternate Billing Services
- AC
- Alarm Code(1)
Access Concentrator(2)
Authentication Center(3) [(German) Berechtigungszentrum]
- ACA
- Automated Cable Analysis
- ACC
- Automatic Congestion Control [congested switches automatically communicate their
congestion level to other switches]
- AcceSS7
- [HP Distributed solution for monitoring and surveillance of SS7
networks, based on probes]
- ACD
- Automatic Call Distribution [private system service that routes calls to stations based
on customer needs]
- ACE
- Application Creation Environment(1)
Advanced Computing Environment(2)
Adaptive Communication Environment(3)
- ACG
- ? Call Gapping
- ACIS
- Advanced Cago Information System [(satellite based) data network for monitoring the
progress of cargo through ports and by rail, UNCTAD stimulated]
- ACL
- Application Connectivity Link(1) [e.g. used by SIEMENS Hicom telephone equipment]
Access Control List (facility)(2) [part of the DCE security service]
- ACM
- Address CoMplete [B-ISDN user part message]
- ACMA
- Automatic Customer Name and Address
- ACO
- Alarm Cut-Off
- ACP
- Action Control Point(1) [user offices that provide access and interfaces to generally
centralized NCPs]
Access Communication Processor(2)
- ACSE
- Association Control Service Entity (or Element) [in the OSI model an
application-layer protocol that is used to establish and terminate an association between
applications on the same or different systems; (german) Funktionseinheit zum Auf- und
Abbau von Schicht-7-Verbindungen]
- ACT
- Advanced (or Applied) Computerised Telephony
- ACTS
- Advanced Communications Technologies and Services [EU research and development program,
starts 1995, 630MEcu, devoted to projects in developing the European information highway]
- ADC
- American Digital Cellular(1) [US mobile phone standard equivalent to GSM]
Asynchronous Device Configuration(2) [alarm filtering in FMS, menu driven]
- ADD
- Architectural Design Document [leads to DDD]
- ADE
- Above Decks Equipment
- ADM
- Add-Drop Multiplex(ers)(1) [aka drop-insert multiplexes, used for SDH
networks]
Application Development & Management(2)
- ADPCM
- Adaptive Differential Pulse Code Modulation
- ADSL
- Asymmetric Digital Subscriber Line [broadband standard with 7.5 Megabit/sec and reply
channel with 384 Kilobit/sec, based on copper lines]
- ADTS
- Advanced Digital Terminal System
- AE
- Alarmeingang(1) (German)
Application Entity(2)
- AEK
- AE-Kennung (German)
- AEN
- AE-Nummer (German)
- AERM
- Alignment Error Rate Monitor [used in network and transmission troubleshooting]
- AES
- Application Environment Specification [by OSF]
- AFC
- Application Foundation Classes [published by Microsoft; collection of platform
independent class libraries; written in Java, based on AWT]
- AFR
- Annual Failure Rate
- AFS
- Andrew File System [comparable with NFS]
- AGCH
- Access Grant Channel
- AGK
- Anlagen- und Geraetekonfiguration (German)
- AH
- Alarm Handler(1)
Authentication Header(2)
- AIC
- Adaptation and Integration Center [HP internal]
- AIN
- Advanced Intelligent Network [architectural concept for the creation and provision of
telecom services. The local exchange carriers in the U.S. are developing the next
generation of network technology, called the Advanced Intelligent Network. This technology
promises to bring advanced capabilities to residential, business, and mobile customers on
the local network level - capabilities that previously have been available either only in
the long-distance networks or not at all.]
- AIP
- ATM Interface Processor
- AIS
- Alarm Indication Signal
- ALK
- Alarmerfassungs- und Loopsteuerkonzentrator (German)
- ALM
- Alarmmelde- und Loopsteuerbaugruppe (German)
- ALMA
- Alcatel Management Applications
- ALMAP
- Alcatel MAnagement Platform
- AMIC
- AMericas Integration Center
- AMP
- Account Management Plan
- AMPS
- Advanced Mobile Phone System
- AMS
- Alarm Management System
- AN
- Access Network
- ANI
- Automatic Number Identification [number of the calling station]
- ANM
- Autonomous Network Manager(1)
Answer(2) [B-ISDN user part message]
- ANR
- Automatic Network Routing
- ANSI
- American National Standards Institute
- ANT
- Applied Network Technology Inc. [telecom switch provider]
- AoC
- Advice of Charge
- AOM
- Application OSI(1) Management (Profile)
- AP
- Application Program
- APCG
- ATM Pilot Coordination Group
- API
- Application Programming Interface [e.g. based on XMP]
- APPC
- Advanced Program-to-Program Communication
- APPLET
- mini APPLication [Java language program]
- APPN
- Advanced Peer-to-Peer Networking (in SNA networks)
- APS
- Automatic Protection Switch
- ARF
- Application Registration File [used for integrating a map builder in OV]
- ARM
- Application Response Measurement API [open API for end-to-end measurement of application
transactions; based on a collaboration between HP RPM/OV program and Tivoli/IBM]
- ARP
- Address Resolution Protocol [TCP/IP based, to bind
an IP address to a LLA(1)]
- ARPA
- Advanced Research Project Agency
- ARS
- Action Request System [Remedy product for managing trouble tickets]
- AS
- Alarmstufe(1) (German)
Associated Signaling(2) [a signaling link is routed in parallel with each transmission
route between signaling points, requiring each signaling point to have signaling links to
every other signaling point in the network]
Authentication Server(3) [part of the DCE security service]
Authorization Server(4)
- ASB
- Alarmsignalbearbeitung (German)
- ASC
- Available Spare Capacity(1)
AIN Switch Capabilities(2)
- ASE
- Alarmsignalerfassung(1) (German)
Application Service Element(2)
- ASI
- Alarmsignalinitialisierung (German)
- ASIC
- Application Specific Integrated Circuit
- ASN.1
- Abstract Syntax Notation One [OSI(1) standard for encoding and
decoding information, used by CMIP and - as a subset - SNMP for
defining low level MIB objects; machine independent formal description
language for the data itself and information regarding the type of data, composed of a
transaction segment and a component segment, presentation Layer service, see also SMI]
- ASPI
- Advanced SCSI Programming Interface
- ASR
- Answer Seize Ratio(1) [NMAS performance indicator]
Automated Speech Recognition(2)
Automatic Set Relocation(3)
- AST
- Acceptance and System Test [part of SVVP]
- ASV
- Alarmsignalverknuepfung (German)
- ATA
- AT Attachment [bus alike PC peripheral interface]
- ATC
- ATM Transfer Capability
- ATCS
- Advanced Timed Channel Selection [based on FHSS. Wireless
transmission method supports transfer rates of 625kb/s, by periodically - each 7 ms -
changing to one of 80 parallel channels or frequencies]
- ATG
- Advanced Technology Groups
- ATM
- Asynchronous Transfer Mode [base for future broadband ISDN, 53 Byte
packets, current standards: SONET/SDH, DS3, TAXI
and Fiber Channel system, user network interface has to support bandwidths of 155 Mbs or
600 Mbs. An international ISDN high-speed, high-volume,
packet-switching transmission protocol standard. ATM uses short, uniform, 53-byte cells to
divide data into efficient, manageable packets for ultrafast switching through a
high-performance communications network. The 53-byte cells contain 5-byte destination
address headers and 48 data bytes. ATM is the first packet-switched technology designed
from the ground up to support integrated voice, video and data communication applications.
It is well-suited to high-speed WAN transmission bursts. ATM currently accommodates
transmission speeds from 64 Kbps to 622 Mbps. ATM may support gigabit speeds in the
future.]
- ATMS
- Assumption-Based Truth Maintenance System
- ATO
- Australian Telecom Operation [HP division]
- ATP
- Advanced Technology Program(1)
Acceptance Test Procedure(2)
- ATS
- Acceptance Test Specification
- AU
- Administration Unit(1)
Access Unit(2)
Alarmunterdrueckung(3) (German)
- AUC
- Authentication Centre
- AUI
- Attachment Unit Interface
- AV
- Alarm Viewer [e.g. part of FMP. Interface between alarm handler and
operator]
- AVA
- Attribute Value Assertion [to identify a MO within the scope of is
superior object]
- AWT
- Abstract Windowing Toolkit [Java's platform- independent windowing, graphics and
user-interface toolkit]
- AXE
- [Ericsson switch]
- AZNR
- Alarm-Zettel-Nummer (German)
B
- B-DCN
- Backbone Data Communications Network
- B-ISDN
- Broadband ISDN [usually implemented using ATM,
with bandwidths from 10 Mbs to 155 Mbs]
- BACP
- Bandwidth Allocation Control Protocol
- BAF
- Bellcore Accounting Format [standard billing format]
- BAIC
- Barring of All Incoming Calls
- BAM
- Bell Atlantic Mobile [US network provider]
- BAOC
- Barring of All Outgoing Calls
- BAP
- Bandwidth Allocation Protocol
- BAS
- (Mobitex) BASe station [ transmitting data packages between
terminal radio modem and BAS with 8kb/s, see also BTS]
- BB
- Base Band
- BBN
- (German) BundesBehoerdenNetz
- BBS
- Bulletin Board System [newsgroup service in the Internet]
- BC
- Bearer Capability
- BCC
- Block Check Character(1)
Bellcore Client Company(2)
- BCCH
- Broadcast Control Channel
- BCF
- Bearer Control Function
- BCM
- Basic Call Model
- BCP
- Basic Call Process
- BCR
- Block Cell Rate
- BCS
- Block Check Sequence
- BCTS
- Backup Courier Time Server [backup for a CTS]
- BD
- Betriebsdaten (German)
- BDA
- BD-Analyse (German)
- BDAT
- Best Demonstrable Achievable Technology
- BDB
- BD-Bearbeitung (German)
- BDE
- BD-Erhebung (German)
- BE
- BeschaltungsEinheit (German)
- BECN
- Backward Explicit Congestion Notification [notifiying bit, informing a DTE
about an overload situation]
- BEDOS
- BEleg-DOkumentationsSystem (German)
- BER
- Basic Encoding Rules(1) [method for encoding data in the OSI
environment]
Bit Error Rate(2)
- BERT
- Bit Error Rate Test set [to be used in connectivity checking/fault diagnosis]
- BF
- BB Frequency
- BFM
- Business Function Model
- BGP4
- Border Gateway Protocol [replacement protocol for EGP; defined in RFC1163; BGP4 supports classless interdomain routing, enabling to reduce
the size of routing tables by creating aggregate routes]
- BGS
- Business Group Services [or 'Advanced Centrex']
- BF
- Basic Function
- BFS
- Betriebsfuehrungssystem (German)
- BFV
- Betriebsfuehrungsvorfeldrechner (German) [HP9000]
- BFZ
- Betriebsfuehrungs-Zentraleinheit (German) [HP1000]
- BHCA
- Busy Hour Call Attempts
- BIB
- Backward Indicator Bit [part of MSU]
- BIC
- Barring of Incoming Calls
- BIDS
- Barring of Incoming Calls
- BIS
- Base InfraStructure
- BISUP
- Broadband ISDN User Part [extensions to ISUP to support BISDN
services]
- BITA
- Business to (or and) IT Alignment
- BLA
- BLocking Acknowledgement [B-ISDN user part message]
- BLK
- Bedienungs- und Loopsteuerkonzentrator (German) [Siemens MX300]
- BLO
- BLOcking [B-ISDN user part message]
- BLOP
- Binary Large Object [e.g. graphics of a digitized document, up to GB]
- BM
- Business Management
- BMAS
- Business Management System [part of MAS]
- BML
- Business Management Layer
- BMP
- Billing Mediation Platform(1) [for collecting Call Data Records to pass them to a
billing system, developed by SNO]
BER Management Protocol(2)
- BMS
- Billing Mediation System
- BNF
- Backus-Naur Form
- BOA
- Basic Object Adapter [part of CORBA]
- BOC
- Bell Operating Companies ["Baby Bells"]
- BOEOC
- Bit-Oriented Embedded Operations Channel
- BOF
- Birds Of a Feather
- BOIC
- Barring of Outgoing International Calls
- BOIC-exHC
- BOIC except those directed towards the home PLMN country
- BOM
- Business Object Model
- BONT
- Broadband Optical Network Termination
- BOOTP
- BOOTstrap Protocol
- BOP
- Bit Oriented Protocol
- BP
- Burst Period
- BPI
- Bit Per Inch
- BPM
- Business Process Model
- BPR
- Business Process Re-Engineering
- BPSK
- Bi-Phase Shift Keying
- BRAVO
- BReitbandAnwendungen in Verteilten Organisationen [pilot project of DeTeBerkom, Berlin]
- BRI
- Basic Rate Interface [ISDN basic connection, supports S0 interface
(with 4 wires, up to 8 devices connectable, up to 2 devices operating simultaneously), 2 *
64kb/s (B channels) and 1 * 16 kb/s (D channel)]
- BRPM
- Business Ressouce Planning Model
- BS
- Base Station
- BSC
- Base Station Controller(1) [controlls a set of base stations, concentrates traffic to
the MSC]
Business System Concept(2)
- BSD
- Berkeley Software Distribution [Unix specification]
- BSDB
- Business Services Data Base
- BSI
- Bundesamt fuer Sicherheit in der Informationstechnik (german) [Bonn, Tel.
+49-228-9582-0, formerly: Zentralstelle fuer das Chiffrierwesen]
- BSIC
- Base Station Identity Code
- BSN
- Backward Sequence Number [part of MSU]
- BSS
- Business Support Systems(1)
Base Station (Sub-)System(2) [formed of BTS and BSC,
connects calls to MSC]
- BSSMAP
- Base Station (Sub-)System Management Part
- BSVCI
- Broadcast Signalling VCI [part of ATM meta signalling cell, 2 Byte]
- BSZ
- Betriebsstellen-Schluesselzahl (German) [6 digits, e.g. 523300]
- BT
- British Telecom
- BTN
- Billing Telephone Number
- BTS
- Base Transceiver Station [GSM term for radio station between handset
and BSC with a Cell diameter from 0.5 to 35km]
- BTSM
- Base Transceiver Station Management
- BTX
- Bildschirmtext (German)
- BUS
- Broadcast and Unknown Server
- BV
- Bearbeitungsvermerk (German)
- BW
- Bandwidth [part of ATM meta signalling cell, 1 Byte]
C
- C
- Cell loss priority field [1 bit field, part of ATM header, marks
priority of transfered data]
- C/I
- Carrier over Interference ratio
- CA
- Client Application(1)
Certification Authorities(2)
Computer Associates(3)
- CAC
- Call (or Connection) Admission Control [ATM term]
- CAF
- Core ATM Functions
- CAG
- Chemical Analysis Group [within HP]
- CAI
- Client Application Interface(1)
Common Air Interface(2)
- CAM
- Common Access Method [programmatic interface between a host adapter (bus interface) and
the operating system, used with SCSI and ATA]
- CAN
- Customer Access Network
- CAP
- Competitive Access Providers(1)
Common Application Platform(2) [layer of TMOS]
- CAPI
- Common ISDN API
- CASE
- Common Application Service Element
- CAU
- CAUse(1) [part of ATM meta signalling cell, 1 Byte]
Control Access Unit(2)
- CAUCP
- Control Access Unit Control Program
- CB
- Channel Bank [e.g. used for TDM with T1 (1.5Mb/s) or E1 (2Mb/s) line]
- CBC
- Cipher Block Chaining [encryption standard]
- CBDS
- Connectionless Broadband Data Service [cell based public data transport network]
- CBIS
- Cincinatti Bell Information System
- CBL
- Client Business Leads
- CBM
- Client Business Manager
- CBO
- Commercial Business Organization [within HP]
- CBR
- Constant Bit Rate [vs. VBR]
- CC
- Country Code(1)
Call Confirmed(2)
Call Control protocol(3)
Cross Connect(4)
Customer Care(5)
- CC-NUMA
- Cache Coherent Non-Uniform Memory Access [base of a consistent, binary compatible
processor architecture, pioneered by Convex Computer Corporation, which HP acquired in
December 95]
- CCAF
- Call Control Agent Function
- CCB
- Customer Care and Billing
- CCBS
- Customer Care and Billing System(1)
Completion of Call to Busy Subscribers(2) [network will automatically offer the call to
the calling party when the called party is free]
- CCC
- Credit Card Calling
- CCCH
- Common Control Channel
- CCE
- Consistency Check End [B-ISDN user part message]
- CCEA
- Consistency Check End Acknowledgement[B-ISDN user part message]
- CCF
- Call Control Function
- CCI
- Command Communicator and Interpreter(1) [in FMP1.1: module, which
essentially supports two-way communication between NEs and the FMP
server]
Common Client Interface(2)
- CCIS
- Common Channel Interoffice Signaling [AT&T's name for its signaling subnetwork that
transmits trunking control signals on a data link separate from message facilities]
- CCITT
- Commite Consultatif International Telegraphique et Telephonique [now: ITU-T,
Internationaler beratender Ausschuss fuer den Telegrafen- und Telefondienst (German)]
- CCL
- Cambridge Consultants LGerman [developer of a multi-media communicating portable future
device]
- CCLA
- Central CLock A [(German) Zentraltaktgeber A]
- CCM
- Customer Contact Manager [for
building state-of-the-art customer service systems]
- CCNC
- Common Channel signaling Network Control
- CCR
- Consistency Check Request [B-ISDN user part message]
- CCRA
- Consistency Check Request Acknowledgement [B-ISDN user part
message]
- CCRSE
- Commitment Concurrency and Recovery Service Element
- CCS
- Common Channel Signaling(1) [signaling method utilizing a separate path from the voice
path]
Canadian Communication Service(2)
- CCSN
- Common Channel Signaling Network
- CCSS
- Common Channel Signaling System
- CCT
- Controlled Cell Transfer [ATM term]
- CCV
- Credit Card Verification
- CD
- Call Deflection(1)
Cell Delay(2) [ATM term]
- CDDI
- Copper Distributed Data Interface
- CDE
- Common Desktop Environment [graphical user interface as well as development environment,
ensures run time compatibility and portability at heterogenous unix systems, opposing MS
Windows NT, designed by HP (HP VUE), IBM (IBM CUA), Novell (UnixWare Client Tools) and
SunSoft (Open Look Deskset Tools), available in HPUX 10.10; replaces HP VUE]
- CDF
- Cumulative Distribution Function(1)
Channel Definition Format(2) [introduced by Microsoft; written in XML]
- CDM
- Computer District Manager
- CDMA
- Carrier Detects Multiple Access(1)
Code Division Multiple Access(2) [developed by the military, voice is digitalized and then
mixed with a random like code. Total signal (voice and random-like code) is transmitted
over a wide band of frequencies (e.g. 10 Mhz). Used in industrial standard IS-95.
Currently not used in mobile public phone systems yet. Vs FSMA or TDMA]
- CDN
- Corporate Data Network
- CDPD
- Cellular Digital Packet Data [wireless data networking protocol, suited for bursty data
applications]
- CDR
- Call Detail Record(1)
Call Data Record(2)
- CDS
- Cell Directory Service [maintains a database of objects in a DCE cell
and maps their (human readable) names to their identifiers and locations, which are used
by programs to access the objects]
- CDT
- Connection-Dropping Threshold
- CDV
- Cell Delay Variation [influences transfer speed, ATM QOS parameter]
- CDVT
- Cell Delay Variation Tolerance [ATM QOS parameter]
- CE
- Computing Element [designator for a single independent processor in a cluster or
multiprocessor system on which a separate operating system (e.g. UNIX) is running]
- CEIR
- Central EIR [in Dublin, contains "colour" list data about
every piece of mobile equipment in circulation and details about their manufacturer,
model, TAA and GSM operator]
- CEN
- (French) Comite Europeen de Normalisation
- CEO
- Chief Executive Officer [Vorstandsvorsitzender (German)]
- CEPT
- Conference Europeene des administration des Postes et des Telecommunications/Conference
of European Postal and Telecommunication
- CER
- Cell Error Ratio [influences transfer accuracy, ATM QOS parameter]
- CERN
- Conseil Europeen pour la Recherche Nucleaire [founding institution for the WWW]
- CERT
- Computer Emergency Response Team [US federally funded]
- CFB
- Call Forwarding (on mobile subscriber) Busy(1)
Cipher FeedBack(2) mode [encryption method]
- CFMP
- Cellular Fault Management Package
- CFN
- ConFusioN [B-ISDN user part message]
- CFNRc
- Call Forwarding on mobile subscriber Not Reachable
- CFNRy
- Call Forwarding on No Reply
- CFP
- Cordless Fixed Part [part of a cordless local loop]
- CFRS
- Concert Frame Relay Services [for connecting LANs with high
bandwidths]
- CFU
- Call Forwarding Unconditionally
- CGA
- Carrier Group Alarm
- CGI
- Common Gateway Interface [a protocol specification for transfering parameters between HTML browsers, servers and external programs, e.g. for generating dynamic
pages. A CGI Script is a program that is executed on a web server in response to a
browser's request.]
- CHAP
- Challenge Handshake Authentication Protocol
- CI
- Communication Infrastructure(1) [part of OVDM,
provides interoperable capability to SNMP and CMOT]
Coded Information(2) [e.g. WinWord or Excel files, vs. NCI]
- CIC
- Circuit Identification Code [part of MSU, endpoint identifier]
- CIDR
- Classless InterDomain Routing [defined by RFC1519; address assignment
and aggregation strategy]
- CIF
- Common Intermediate Format(1)
Cell In Frames(2) [proposed by the Cornell University, enables ATM in LAN]
- CIL
- Components Integration Laboratories
- CIM
- Computer Integrated Manufacturing(1)
Customer Information Management (system)(2)
Common Information Model(3) [component of NetPC platform management
information technologies]
- CIO
- Corporate IT Organization
- CIP
- Channel Interface Processor(1)
Concert Internet Plus services(2) [global carrier network, developed specially for the
needs of ISP and Internet Reseller. The CIP Service is a Development of
Concert, a Joint Venture of BT and MCI]
- CIR
- Committed Information Rate [characterizes the average transfer rate in a frame relay
network]
- CIT
- Computer Integrated Telephony [DEC's telecom platform]
- CIX
- Commercial Internet Exchange [backbone free of NFSNET
restrictions, prompting widespread and more commercial throughput, predecessor of
InterNet]
- CK
- Check Bit [part of MSU]
- CKSN
- Ciphering Key Sequence Number
- CLASS
- Custom Local Area Switching Service(1) [includes intra-LATA services such as call
waiting, call blocking, automatic number identification (ANI), priority call, call trace,
repeat call]
Custom Local Area Signaling System(2) [a CO based system that relies on
SS7 capabilities to provide AIN services such as equal access 800
dialing and private virtual networks]
- CLF
- Carrier Line Failure
- CLI
- Command Line Interface(1) [part of OVw, user interface to maps, MIB or objects, alternative to GUI]
Calling Line Identification(2) [feature of an AIN]
- CLIP
- Calling Line Identification Presentation [ISDN Service]
- CLIR
- Calling Line Identification Restriction [ISDN Service]
- CLLC
- Common Language Location identification Code
- CLNAP
- Connectionless Network Access Protocol [wide area cell based public data service]
- CLNP
- ConnectionLess Network Protocol
- CLNS
- Connectionless Network Server (or Service) [(German) Netzwerkvermittlungsdienst, bei dem
Daten uebertragen werden, ohne dass vorher eine (logische) Verbindung ueber das Netz
hergestellt wurde, OSI based]
- CLP
- Cell Loss Priority [field, part of ATM header, 1b]
- CLR
- Cell Loss Ratio [influences transfer dependability, ATM OQS
parameter]
- CLTD
- CLock and Tones Distribution
- CLTP
- Connectionless Transport Protocol [(German) Transportprotokoll, bei dem der
Datenaustausch ohne den Aufbau einer (logischen) Transportverbindung und ohne
Flusskontrolle ablaeuft]
- CM
- Configuration Management(1)
Communication Management(2)
Continous Media(3) [supports VOD on WWW]
- CMAS
- Cellular Management System [part of MAS]
- CME
- CM-Entity
- CMIP
- Common Management Information Protocol [OSI(1) Network Management
Protocol; used by manager and agent processes to exchange management informationes the
agent/manager paradigm to communicate management information between systems; differs from
SNMP in that it is more rigorous, is designed for open systems, and is
an association-oriented protocol, requiring the two communicating CMIP processes to
establish an association before sending any management messages; defined in ISO
standard 9596-2, vs. TCP/IP and SNMP]
- CMIPDU
- CMIP Data Unit
- CMIS
- Common Management Information Service [OSI(1) Network Management
Service; enables management applications to communicate in the OSI
environment; offers a set of services that provide for management operation, retrieval of
information, and notification of network events]
- CMISE
- Common Management Information Service Entity (or Element) [set of management services
and functions provided to applications for the transfer of management information,
provides for selecting specific objects or groups of objects via scoping and filtering]
- CML
- Command ManuaL
- CMO
- Computer organization Marketing and Operations group [HP entity]
- CMOT
- CMIS Over TCP/IP [requires a light-weight
presentation protocol to map from the application to transport layers]
- CMR
- Cell Misinseration Rate [influences transfer speed by out of sequence cells, ATM QOS parameter]
- CMSDB
- Call Management Services Data Base
- CN
- Corporate Network
- CNC
- CoNCentrator(1)
Configurable Network Computing(2) [object based, provides greater flexibility and
scalability than traditional client/server technologies; includes event-driven objects and
dynamic partitioning; platform neutral]
- CNE
- Certified Novell Engineer [Netware oriented]
- CNI
- Communications Network International GmbH [German group, wireline business, formed by
Deutsche Bank (25%), Mannesmann (50%) and RWE (25%)]
- CNM
- Customer Network Management(1)
Computer Network Management(2)
- CNO
- Computer News Online [published on ESP(2)]
- CNR
- Channel Number [e.g. in a ZD-A3]
- CO
- Central Office(1)
Computer Organization(2) [= CSO + CBO + CPBO + WCSO + PSO]
- COBOL
- COmmon Business Oriented Language
- CoLP
- Connected Line Identification Presentation
- CoLR
- Connected Line Identification Restriction [ISDN Service]
- COM
- Component Object Model [Wintel limited ...]
- CONCERT
- [MCI & BT subsidiary, provides the user (teleco companies) with a single interface
to all telecommunication services and network hardware, "manager of managers",
offers outsorcing by is GNS]
- CONS
- Connection Oriented Network Service [(German) Netzwervermittlungsdienst, der eine
(logische) Verbindung ueber das Netzwerk etabliert, bevor Daten (mit Flusskontrolle)
uebertragen werden]
- COP
- Character Oriented Protocol
- CORBA
- Common Object Request Broker Architecture
[specifies mechanisms and interfaces for building distributed object oriented
applications, defined by OMG, CORBA 2.0 based on UNO,
vs. DCE]
- COSE
- Common Open Software Environment
- COSS
- Common Object Services Specification [part of OMA]
- COT
- Central Office Terminal
- CP
- Coordination Processor
- CPBO
- Consumer Products Business Organization [within HP]
- CPCS
- Common Part Convergence Sublayer [part of ATM payload segmentation or
reassembly]
- CPDE
- Computer Products Distribution Europe [HP distribution center, based in Neuhausen nextto
Stuttgart]
- CPE
- Customer Premise Equipment
- CPG
- Call ProGress(1) [B-ISDN user part message, used in the USA]
Consumer Products Group(2) [HP entity]
- CPL
- Corporate Price List
- CPLC
- Custom Product Life Cycle
- CPM
- Customer Premises Management(1)
Custom Patch Manager(2)
- CPO
- Computer Products Operation
- CPP
- Calling Party Pays [charging method in wireless paging, e.g. with DeTeMobil's Scall
service]
- CPS
- Concert Packet Service
- CPSO
- Channel Products worldwide Support Organisation [HP entity]
- CPSS
- Control Packet Switching System
- CPT
- Cooperative Programming Tool(1)
Cross Platform Toolset(2) [environment for the development of OSF/Motif compliant GUI; developed by Visual Edge Software, Ltd.]
- CPU
- Central Processing Unit
- CR
- Carriage Return
- CRADA
- Cooperative Research and Development Agreement
- CRC
- Cyclic Redundancy Check(1) [part of ATM meta signalling cell, 10
Byte, also: part of a X.25 packet, added by sending node, checked by next receiving node,
which also computes a new CRC. Frame relay computes the number only at the two end nodes]
Country Response Center(2)
- CRS
- Cell Relay Service [transport of cells between private local ATM
networking equipment]
- CRUD
- Create Read Update Delete
- CS
- Connection Segment(1)
Circuit Switch(2)
Client/Server(3)
- CSA
- Connection Segment Associated
- CSBU
- Commercial System Business Unit [HP entity]
- CSC
- Computer Science Corporation [HP channel partner]
- CSCW
- Computer Supported Cooperative Work
- CSD
- Computer Services Delivery
- CSDG
- Computer Sales and Distribution Group [new HP computer sales organisation]
- CSE
- Cooperative Software Engineering
- CSI
- Colour Status Indicator(1)
Clearing Subnetwork Identification(2)
- CSM
- Communications System Monitoring
- CSMA
- Carrier Sense Multiple Access
- CSMA/CD
- Carrier Sense Multiple Access with Collision Detect
- CSNMS
- Carrier Service Network Management Systems
- CSO
- Computer Systems Operation (or Organization)
- CSPDN
- Circuit Switched Public Data Network
- CSPG
- Cellular Service Provider Group [as part of FCS(2)]
- CSPP
- Computer Systems Policy Project [formed by CEOs of the 13 largest computer companies in
the USA]
- CSR
- Customer Service Representatives [working e.g. at help desks or as consultants at
customers' sites]
- CSS
- Cascading Style Sheets(1)
Critical Systems Support(2) [HP WCSO high availability service]
Customer Service System(3)
- CSTA
- Computer Supported Telecommunication Applications [ECMA standard,
defining the communication between a PBX and a computer]
- CT2
- Second Generation Cordless Telephones [1st generation standard, with max. range of 300m
around basestations without automatic hand-over, with 40 RF carriers * 1 duplex voice
channel (=40 voice channels) per BTS, good for office locations,
predecessor of DECT]
- CTC
- Cell Transfer Capacity [influences transfer speed, ATM QOS parameter]
- CTD
- Cell Transfer Delay [influences transfer speed, ATM QOS parameter]
- CTD
- Cambridge Technology Group [system consultant and integrator, founded by John Donovan]
- CTI
- Computer-Telephony Integration
- CTIA
- Cellular Telecommunications Industry Association
- CTM
- Cordless Terminal Mobility [interface]
- CTR
- Common Technical Regulation
- CTS
- Courier Time Server [synchronizes the time in a WAN with the GTS and other LTSs]
- CTSG
- CUA
- Common User Access
- CUG
- Closed User Group
- CUKEY
- Closed User KEY [special key management for closed groups]
- CUL
- Client Unit Leader
- CV
- Code Violation
- CVNS
- Concert Virtual Network Service [Voice communication service]
- CVPN
- Concert Virtual Private Networks [IVPN service, launched by BT]
- CW
- Call Waiting [ISDN Service]
D
- D-AMPS
- Digital American Phone System [US-Standard, vs. GSM]
- DA
- Directory Assistance(1)
Destination Address(2)
- DAB
- Digital Audio Broadcasting
- DACS
- Digital Access Cross-connect Switch (or System)(1) [switches TDM
channels among T1 circuits connected to it]
Directory Assistance Charging System
- DAM
- DECT Authentication Module
- DARPA
- Defense Advanced Research Projects Agency
- DAS
- Dual Attached Station
- DAT
- Digital Audio Tape
- DATEX-P
- [X.25 network, provided by the Deutsche Telekom AG]
- DAUA
- Digital Announcement Unit A [(German) Digitalansage A]
- DB
- Data Base
- DBC
- Dynamic Buffer Cache
- DBMS
- Data Base Management System
- DBP
- Deutsche BundesPost (German)[German Federal Mail]
- DBR
- Deterministic Bit Rate [ATM term]
- DC
- Distributed Computing(1) [like DCE(1) or CORBA]
Data Collector(2) [in FMP1.1: module, which collects events from NEs
and does a high level parsing before sending the event to the MD]
- DCC
- Digital Cross-Connect (system)(1) [Cross-Connector]
Data Communication Channel(2) [2, part of SONET, to enable
communication between network elements]
Data Country Code(3)
- DCE
- Distributed Computing Environment(1) [a suite of software that enables networked
computers to share data and services efficiently and securely; recommended by OSF, vs. CORBA]
Data Circuit terminating Equipment(2) [e.g. a modem]
- DCF
- Data Communication Function
- DCN
- Data Communication Network [helps to connect various TMN components
with one another, is used when various functional groupings are implemented remotely from
others]
- DCOM
- Distributed Common Object Model
- DCS
- Data Collection Server(1) [e.g. part of FMP-4]
Digital Communication System(2) [1800 Mhz,with ranges from 2*5MHz to 2*75mhz, 1710 - 1785
and 1805 - 1880 MHz, e.g. E-Plus]
Digital Crossconnect System(3)
Data Collection Software(4)
Distributed Computing System(5)
Digital Cellular System(6) [equiv2 DCS(2)]
- DCS-32
- Data Collection Server with 32 RS-232 ports [part of FMP-4]
- DCS-64
- Data Collection Server with 64 RS-232 ports [part of FMP-4]
- DCT
- Digital Cordless Telephone(1)
Discrete Clock Transmitter(2)
- DDD
- Detailed Design Document(1)
Direct Distance Dialing(2)
- DDL
- Data Definition Language
- DDN
- Digital Data Network(1) [e.g. realized by HongKong Telecom]
Defence Data Network(2)
- DDNS
- Dynamic Domain Name Service [by IBM's OS/2; cooperating with DNS]
- DDS
- Digital Data Storage [industry standard for recording computer data to a DAT]
- DDSN
- Digital Derived Services Network [AT&T's national IN provided for
BT UK]
- DDV
- Datendirekt-Verbindung (German) [Festverbindung]
- DE
- Discard Eligibility(1) [bit, informing a frame relay switch about discarding that frame
in an overload situation]
Distributed Enterprise(2)
- DECIX
- Deutscher Commercial Internet Exchange [in Frankfurt]
- DECT
- Digital European (or Enhanced) Cordless Telecommunications [2nd generation cordless
telephone standard, designed to be capable of supporting very high traffic densities (up
to basic rate ISDN) by 10 RF carriers * 12 duplex
voice channels per carrier (=120 voice channels) per BTS, at 1895-1906
MHz (private) and 1906-1918 MHz (public), with a proposed extension to a 30 MHz frequency
band, with TDMA/TDD access technique, GMSK modulation technique, making it suitable for low mobility-high
capacity, vs GSM900, concentrated usage environments such as city
center offices and transport hubs, developed in Europe, see also PHS]
- DEE
- Datenend-Einrichtung (German)
- DES
- Discrete Event Simulation(1)
Data Encryption Standard(2)
- DF1
- (German) Digitales Fernsehen 1
- DFN
- (German) Deutsches ForschungsNetz
- DFS
- Depth First Search(1)
Distributed File System(2) [part of HP's DCE(1), allows DCE hosts to
access each other's files via a consistent global file naming hierarchy in the DCE
namespace]
- DGPS
- Differntial GPS
- DHCP
- Dynamic Host Configuration Protocol [advanced IP address management by
dynamically assigning IP adresses from a given IP
address pool to new hosts, based on BOOTP, defined in RFC1561.
Currently no support of DNS entry updates]
- DHSD
- Duplex High Speed Data
- DID
- Direct Inward Dialing
- DIDM
- Distributed Internet Discovery and Monitoring [feature of HP OV NNM4.1]
- DII
- Dynamic Invocation Interface [allows a program to build a request to an object at run
time]
- DIS
- Draft International Standard [as defined by ISO]
- DLC
- Digital Loop Carrier(1)
Data Link Control(2)
- DLCI
- Data Link Connection Identifier
- DLU
- Digital Line Unit [(German) digitale Teilnehmerleitungseinheit]
- DM
- Distributed Management [Platform or Element of OV, complete superset
of SMNP platform]
- DMC
- Delivery Management Client(1) [PSO managing tool, To be released in Jan96]
Digital Microwave Corporation(2)
- DME
- Distributed Management Environment [to be worked on by OSF]
- DMI
- Definition of Management Information(1)
Desktop Management Interface(2) [component of NetPC platform
management information technologies]
- DML
- Data Manipulation Language
- DMM
- Distributed Management Module [optional extension to the HP AdvanceStack Hub-8U]
- DMO
- Direct Marketing Organization [HP entity]
- DMS
- Document Management System
- DMTF
- Desktop Management Task Force
- DMUX
- DeMUltipleXer
- DMZ
- DeMilitarized Zone [network segment accessible from the internet as well as from the
intranet, close to a firewall system]
- DN
- Distinguished Name(1) [alias FDN]
Directory Number(2)
- DNA
- Digital Network Architecture
- DNBE
- Datennetzbedieneinheit (German)
- DNFS
- Distributed Network File System
- DNI
- Digital Non Interpolation
- DNS
- Domain Name Server (or System or Service)(1) [maps system names to IP
addresses; see also RFC 1956]
Datennetzsignalisierung (2) (German)
- DOG
- DECT Operators Group [association of DECT related companies]
- DOI
- Distributed Object Infrastructure
- DOKRYPT
- Datei Orientierte KRYPTologie (German) [Windows based software for digital signatures
and encrypting functions]
- DOD
- Department of Defense
- DOE
- Distributed Objects Everywhere
- DOMF
- Distributed Object Management Facility
- DP
- Draft Proposal(1) [as defined by ISO]
Dial Pulse(2)
Desktop Publishing(3)
- DPC
- Destination Point Code [part of MSU, Zielpunktcode (German)]
- DPE
- Distributed Processing Environment
- DPM
- Digital Performance Monitoring (system)
- DPMS
- Digital Performance Management System(1) [for monitoring PDH
transmission networks]
Data Processing and Management Server(2) [standard component of BMP,
contains functions that form a concentration node for usage data processing functions]
- DPP
- Distributed PrePlan
- DPP
- Data Post Processing System
- DPS
- Distributed Print Service(1) [standard print spooling service across the entire
networked enterprise; can work with hundreds of printers, spoolers, and clients;
inntegrated in SAM; introduced with HP-UX10.20]
Domestic Packet Switch network(2) [as operated by VIAG Interkom]
- DQDB
- Distributed Queue Dual Bus [OSI layer 1 and 2 of MAN
standard,aka IEEE 802.6 standard]
- DR
- Distributed Restoration
- DRA
- Distributed Restoration Algorithms
- DRAM
- Dynamic Random Access Memory
- DR
- Disaster Recovery
- DRP
- Disaster Recovery Procedure
- DRPM
- Digital Radio Performance Monitor
- DRS
- Digital Reference Signal(1) [sequence of bits representing a 1004Hz to 1016Hz signal
with a power level equal to one milliwatt]
DECT Radio Site(2) [bundled in DECT islands, controlled by a GDSC]
- DRTV
- Direct Response TV
- DRX
- Discontinous Reception
- DS
- Data Server(1) (process) [e.g. running on IFMS's data collection servers]
Digital Signal(2)
- DS1
- Data Speed rate 1 (or Digital Signal (Level) 1)[1.544 Mbps, equivalent to 24 voice
channels]
- DS3
- Data Speed rate 3 (or Digital Signal (Level) 3) [44.7 Mbps, equivalent to 28 DS1 signals
or 672 voice channels]
- DSA
- Directory Server Agent(1) [responsible within the X.500 standard
for the administration of hierarchical organized information (eg addresses); usually
spread over a network]
Data Service Adapter(2) [GSM modem card]
- DSAC
- Dial Service Administration Center
- DSC
- [network switch manufacturer]
- DSET
- Distributed Software Engineering Tools [US company, offers GDMO
Agent Emulator]
- DSGA
- Digital Signal Generator A
- DSI
- Detailed Spectrum Investigations(1) [as performed by ERO]
Dynamic Skeleton Interface(2)
Data Source Integration(3) [technology used e.g. by HP MeasureWare Agents. It allows
customers to integrate resource and performance metrics from IBM AIX, Sun Solaris or
AT&T GIS systems into HP Performance tools.]
Digital Speech Interpolation(4)
- DSII
- Dual Stream Instant Ignition [latest release as well as the previour release of the
operating system will be available at the same time to a customer to choose, e.g. starting
01Jul95 HP-UX 9.07 and HP-UX 9.05PCO]
- DSL
- Digital Subscriber Line
- DSM
- Distributed Systems Management
- DSN
- Digital Switching Network [(German) Digitales Koppelnetz]
- DSOM
- Distributed System Object Model
- DSP
- Digital Signaling Processor
- DSPM
- DiSPlay Manager [of OpC]
- DSPU
- DownStream Physical Unit
- DSR
- Digital Satellite Radio
- DSRR
- [one of the coming pan-European services or standards]
- DSS
- Distributed Sample Scrambling [in physical layer in broadband communication]
- DSS1
- Digital Subscriber System No. 1 [European ISDN standard, will
replace German standard 1TR6]
- DSSR
- Digital Short-range Radio
- DSSSL
- Document Style Semantics and Specification Language [extended SGML]
- DTAP
- Direct Transfer Application Part
- DTC
- Data(com) and Terminal Concentrator (or Controller) [HP product. Connects to RS232
lines]
- DTD
- Document Type Definition [see also SGML]
- DTE
- Data Terminal Equipment [e.g. a PC]
- DTF
- Digital Transmission Facility
- DTI
- Department of Trade and Industry
- DTM
- DeTeMobil [subsidiary of Deutsche Bundespost Telekom]
- DTMF
- Dual Tone Multi Frequency (signaling) [method for transmitting address pulses (and other
signaling information), using a set of dual-tones to represent individual characters or
numbers, vs. MF(2), used for signaling by station equipment like telephone sets]
- DTP
- Distributed Telecom Platform
- DTR
- Digital TRunk [(German) Digitalverbindungsleitung]
- DTS
- Distributed Time Service [service that synchronizes clocks on DCE
hosts with each other and, optionally, with an external clock]
- DTX
- Discontinous Transmission
- DUA
- Directory Server Agent [responsible within the X.500 standard for
the query of DSA initiated by users or applications]
- DUP
- Data User Part [used for circiutswitched data networks]
- DVB
- Digital Video Broadcasting
- DVD
- Digital Video Disc
- DVMRP
- Distance Vector Multicast Routing Protocol
- DVPN
- Domestic Virtual Private Network [as operated by VIAG INTERKOM]
- DVV
- DatenVerarbeitungsVerantworlicher (German)
- DX
- Digital Exchange
- DXI
- Data Exchange Information(1)
(SMDS) Data Exchange Interface(2) [in broadband communication]
E
- EA
- Expert Advisor(1) [part of an expert system]
Early Assignment(2)
Event Agent(3) [management service in OV, facilitates event distribution
within the network]
Extensible SNMP Agent(4)
- EAC
- EIR Administration Center [UNIX based application that manages EIR
data and interfaces with the CEIR]
- EADAS
- Engineering and Administration Data Acquisition System
- EAM
- Enterprise Architecture & Management
- EAZ
- (German) Endgeraeteauswahlziffer
- EBAF
- Extended(?) Bellcore Accounting Format [standard billing format]
- EC
- Event Correlator(1) [e.g. part of FMP(2)]
European Community(2)
Electronic Commerce(3)
- ECB
- Electronic Code Book [encryption standard]
- ECC
- Embedded Communications Channel(1)
Error Correction Circuitry(2) [typically used in reference to a type of RAM]
- ECDL
- Event Correlation Definition Language [used by ECS]
- ECIS
- European Committee for Interoperable Systems
- ECMA
- European Computer Manufacturers Association
- ECS
- Event Correlation Services [based on HPOpenView]
- ECSA
- Exchange Carriers Standards Association
- ECSC
- European Customer Support Center [HP customer organization, first contact for PC
warranty questions; based in Amsterdam]
- ECTRA
- European Council of Telecommunications Regulatory Authorities
- EDA
- Electronic Design Automation [integrated design and simulation of electronical circuits
and systems]
- EDI
- Electronic Data Interchange
- EDIF
- Electronic Design Information Format [a framework for the definition and exchange of
electronic design data, including masks, circuits and test data]
- EDIFACT
- Electronic Data Interchange For Administration, Commerce and Transport [a collection of
information exchange standards for international electronic transfer of specifications,
orders and payments]
- EDM
- Enterprise Desktop Management
- EDMS
- Enterprise Desktop Management Services
- EDP
- Electronic Data Processing
- EDSS1
- European Digital Subscriber System number One [(German) fruehere Bezeichnung fuer das
ISDN-Protokoll DSS1]
- EDTV
- Enhanced Definition TeleVision
- EEBU
- Extended Enterprise Business Unit [HP Entity]
- EENS
- European Enterprise Network Strategies
- EERP
- Extended Enterprise Resource Planning
- EF
- Enhanced Functions(1)
Event Filter(2) [in FMP1.1: module in MD, which filters alarms send to
the FMP server]
- EFD
- Event Forward Discriminator [object, created and managed by the EA(3).
Each application or agent that is interested in receiving events creates an EFD. The EA(3) then uses these EFDs to determine where it should send incoming
events. EFDs contain destination addresses of the interested applications or agents.]
- EFF
- Electronic Frontiers Foundation [privacy and security watchdog organization]
- EGP
- Exterior (or External) Gateway Protocol [used by all routers attached to the DDN(2), alternative to tcp or udp]
- EGSM
- Extended GSM
- EH
- Event Handler
- EHPT
- EIA
- Electronic Industries Association
- EIC
- European Integration Center
- EICD
- External Interface Control Document
- EIGRP
- Enhanced Interior Gateway Routing Protocol [enhanced version of IGRP,
developed by Cisco; uses the same vector algorithm and distance information as IGRP; convergence properties and operating efficiency have improved
significantly, however]
- EIP
- Ethernet Interface Processor
- EIR
- Equipment Identification Register [maintained by the network operator]
- EIRP
- Equivalent Isotropic Radiated Power [(German) Guetemass eines Senders]
- EISA
- Extended Industry Standard Architecture
- EISS
- Europaeisches Institut fuer System-Sicherheit [located at the univerisity of Karlsruhe]
- EL
- Event Logger(1) [part of FMP(2)]
Element Layer(2)
- ELA
- Event Log Agent [part of EMS]
- ELAN
- Emulated LAN
- ELC
- Education Life Cycle
- EM
- Element Management (or Manager)(1)
Expert Modifier(2) [part of an expert system]
Event Manager(3) [component of SNI(3) SMP(3)]
Enterprise Messaging(4)
- EMBU
- Enterprise Middleware Enterprise Unit [HP entity]
- EML
- Element Management Layer [see NML and SML]
- EMLS
- Event Message Logging System [error documentation and distribution system in Siemens IN]
- EMML
- Extended MML
- EMN
- EWSD-TMN
- EMO
- Electronic Mail Operation
- EMS
- Event Management Service(1) [part of OVDM, provides
a mechanism to collect, log and route SNMP or CMIS events in a
multivendor network] /
Element Management System(2) [helps to manage individual devices like modems or routers
tied to corporate networks and can support an industry standard for device mgmt. Can also
manage services (e.g. inbound and outbound calling services) and provide realtime info
about faults, Trouble Tickets, performance and problem resolution. For a class of managed
objects]
- EMT
- European Management Team [led by Franz Nawratil]
- ENM
- EWSD Network Management
- ENM/OS
- ENM/Operating System
- ENS
- Enterprise Network Strategies
- EoB
- End of Bus
- EOC
- Embedded Operations Channel
- EOCC
- European OSS Competence Circle
- EOS
- Electronic Output Strategies
- EPHOS
- European Procurement Handbook for Open Systems [(German) Europaeisches
Beschaffungshandbuch]
- EPPA
- European Public Paging Association
- EPS
- Enterprise Parallel Server
- EQN
- Extended Queuing Network
- ERB
- Editorial Review Board
- ERBIS
- (German) Einheitliches Rechnergestuetztes BetriebsInformationSelement
- ERC
- European Radiocommunications Committee [of the CEPT]
- ERMES
- European Radio MESsaging [GSM-based paging, 2nd generation standard]
- ERO
- European Radiocommunications Office [permanent organ of the ERC of the CEPT, located in
Copenhavn, has the objective of developing proposals for a European Table of Frequency
Allocations and Utilisations for the band from 29.7 Mhz to 105 GHz]
- ERP
- Effective Radiated Power
- ERS
- External Reference Specification [specifying (programmatic) user interfaces]
- ES
- Errored Second
- ES-IS
- End System to Intermediate System
- ESA
- Event Sieve Agent(1) [part of EMS]
European Space Agency(2)
- ESBU
- Enterprise Systems Business Unit [HP entity]
- ESC
- Engineering Service Circuits
- ESG
- Enterprise Server Group
- ESIG
- European SMDS Interest Group
- ESIOP
- Environment Specific Interoperability Protocol [part of CORBA 2.0]
- ESM
- Enterprise System Management(1)
Enterprise Solutions Model(2)
- ESMR
- Extended Specialized Mobile Radio
- ESN
- Electronic Serial Number [of e.g. a mobile handset, see also MIN]
- ESO
- Enterprise Solution Organization
- ESP
- Enhanced Service Provider(1)
Electronic Sales Partner(2) [HP internal sales support base]
Encapsulating Security Payload(3) [extension of the IP protocol; by
encrypting either IP packets (tunnel mode) or transport protocol packets (TCP,
UDP or ICMP, transport mode)]
- ETC
- Enhanced Throughput Cellular [wireless data access protocol, developed by AT&T
Paradyne]
- ETD
- Electrical Time division Demultiplexer
- ETDM
- Electrical Time Division Multiplexing
- ETIS
- European Telecommunications Informatics Services [telecom service provider consortium;
one of the founders of SPIRIT]
- ETM
- Electrical Time division Multiplexer
- ETNS
- European Telephony Numbering Space
- ETO
- European Telecommunications Office [organisation, located in Kobenhavn (Denmark),
providing standardised application procedures for companies wanting to offer new services
in their local countries]
- ETS
- European Technical Standard [as convergence layer]
- ETS300640
- ETS for "Golden Numbers" [confirms the standard key pad
layout into four rows of three with the numbers running from left to right from 1 to 9 and
then *, 0, # on the bottom row; it then assigns alphabetic letters to the keypad numbers;
the 1 has no letters assigned; the 2 gets a, b, c; the 3 d, e, f; and so on with three
letters each until the 7, which gets p, q, r, s; the 8 gets t, u, v and the 9 w, x, y, z.]
- ETSI
- European Telecommunications Standardisation (or Standards) Institute
- EUTELSAT
- EUropean TELecommunications SATellite organization
- EVE
- European Videophone Experiment
- EVUA
- European VPN Users Association [group of multinational companies, founded by Rank Xerox
and ICI]
- EWOS
- European Workshop for Open Systems [(German) Organisation, in der Hersteller und
Anwender von offenen Systemen (gefoerdert von der Europaeischen Kommission) Vorschlaege
fuer Profilnormen erarbeiten]
- EWS
- Engineer Work Station
- EWSD
- Elektronisches WaehlSystem Digital (German) [Siemens system]
- EWU
- EntWicklungsUmgebung (German)
- EZ
- EntwicklungsZentrum [(German), operated by the German Telekom, 5 sites]
F
- FAC
- Final Assembly Code
- FACCH
- Fast Associated Control Channel
- FAQ
- Frequently Asked Questions
- FAS
- Frame Alignment Signal
- FBC
- FeedBack Control [ATM term]
- FBS
- Fernbedien- und Steuerbaugruppe (German)
- FCAPS
- Fault Configuration Accounting Performance Security
- FCC
- Federal Communications Commission
- FCCH
- Frequency Correction Channel
- FCI
- Fibre Channel Interface [155mb/s]
- FCS
- Frame Check Sequence(1)
Federation of Communications Services(2)
- FD-SCSI-2
- Fast/Differential implementation of SCSI-2 [10MB/sec, up to 7
devices]
- FDCT
- Forward Discrete Cosine Transformation
- FDD
- Frequency Division Duplex
- FDDI
- Fiber(optic) Distributed Data Interface [ANSI standard for high speed LANs, based on
fibre optic, works on a double token ring technology, vs. ATM/B-ISDN]
- FDM
- Frequency Division Multiplex
- FDMA
- Frequency Division Multiple Access [used by existing cellular systems by dividing the
total band allocated to a cellular operator (25MHz) into discrete channels of a bandwidth
of 30 kHz each. With 833 channels available and each conversation requiring two channels,
416 pairs of frequency are available to each operator, cheaper than TDMA or CDMA]
- FDN
- Fully Distinguished Name [a unique sequence of RDNs, constructed by
traversing a containment tree from the root to an object instance, aka MOI]
- FD SCSI-2
- Fast/Differential implementation of SCSI-2 [10MB/sec, up to 7
devices, used only on older workstations]
- FE
- Fault Event
- FEA
- Front End Agent [part of FMP(2)]
- FEBE
- Far End Block Error
- FEC
- Forward Error Correction [error correction method in the GSM
standard]
- FECN
- Forward Explicit Congestion Notification [notifiying bit, informing the next frame relay
switch]
- FEFA
- Far End Failure
- FEIP
- Fast Ethernet Interface Processor
- FEP
- Front End Processor [(German) Kommunikationsrechner]
- FER
- Frame Erasure Rate [(German) Rahmenfehlerquote]
- FFM
- First Failure to Match
- FHSS
- Frequency Hopping Spread Spectrum
- FIB
- Forward Indicator Bit [part of MSU]
- FIFO
- First-In, First-Out
- FIP
- FDDI Interface Processor
- FIPS
- Federal Information Processing Standard [(German) von NIST
verabschiedetes Standardisierungsdokument fuer die Verwendung von IT in der
US-amerikanischen Bundesverwaltung]
- FIPS60
- Federal Information Processing Standard 60
- FIRP
- Federal Internetworking Requirements Panel [(German) hochrangiges, von NIST
eingesetztes Gremium, das Strategien im Bereich offener Netze, Verwendung von Standards
etc. in der US-amerikanischen Bundesverwaltung erarbeitet]
- FISU
- Fill In Signal Unit [Fuellzeicheneinheit (German)]
- FITL
- Fibre In The Loop
- FLS
- Fault Logging System
- FM
- Fault Management
- FMAC
- Facility Maintenance and Administration Center
- FMAS
- Facility Management System [part of MAS]
- FMC
- Funnel Management Client [PSO managing tool, tracks leads thru the funnel until a deal
is either won or lost. To be released in Jan96]
- FMO
- Future Mode of Operation
- FMP
- Fault Management Platform(1) [developed by SNO]
Formatted Message Processor(2) [part of FMP(1)]
- FMP-1
- FMP Single Server Solution
- FMP-4
- FMP Multiple Server Solution [split between main FMP
server and data collection servers]
- FMS
- FM Solution
- FN
- Frame Number
- FOI
- Field Of Interest [such as BITA, EERP, CSD, TINSD, ITSM, EM,
ITI and EDMS]
- FOIRL
- Fiber Optic InterRepeater Link [industry standard for optical fiber products, replaced
by 10Base-FL]
- FOT
- FOrward Transfer(1) [B-ISDN user part message]
Flow Object Transfer(2)
- FOTS
- Fibre Optics Transmission Systems [electro-optical converter]
- FP
- Fixed Parts
- FPH
- FreePHone
- FPLMN
- Foreign Public Land Mobile Network [vs. HPLMN]
- FPLMTS
- Future Public Land Mobile Telecommunications Systems [1885-2025 and 2100-2200 Mhz, for
global mobile services, with satellite components in the top 14Mhz of each band, ITU recommendations planned to be stable 1997-1998]
- FPM
- Field Project Management
- FR
- Frame Relay [new packet switching technology, 56kb/s to 1.5Mb/s, data packets only]
- FRF
- Field Registration File [possible source for field definition in OVw]
- FRSU
- Fixed Radio Subscriber Units [component of WiLL]
- FS
- Functional Specification
- FSB
- For Small Business
- FSBU
- Financial Services Business Unit [HP entity]
- FSIP
- Fast Serial Interface Processor
- FSL
- File System Layout
- FSM
- Finite State Machine
- FSN
- Forward Sequence Number [part of MSU]
- FT
- Fault Ticket(1)
Fault Tolerant(2)
- FTAM
- File Transfer Access Method (or and Management) [(German) "ftp" auf OSI(1) Application Services, interactive file transfer]
- FTC
- Federal Trade Commission [US antitrust authority]
- FTMI
- France Telecom Mobiles Internationale [France Telecom subsidiary]
- FTP
- File Transfer Protocol [TCP/IP based protocol for
transferring files, Internet standard]
- FTTB
- Fiber to the Building [optic fibre network concept]
- FTTC
- Fiber To The Curb [optic fibre network concept]
- FTTH
- Fiber To The Home [optic fibre network concept, up to endusers]
- FTZ
- (German) Forschungs- und TechnologieZentrum
- FWD SCSI-2
- Fast/Wide/Differential implementation of SCSI-2 [20MB/sec, up to 15
devices]
G
- GAP
- Generic Access Protocol
- GBR
- General Business Release [e.g. HP-UX 10.0 version B.10.01, to be released July 95]
- GCF
- Generic Command Facility
- GCRA
- Generic Cell Rate Algorithm [ATM term]
- GDMO
- Guideline for Definition of Managed Objects [defines standard templates describing
managed Object Classes and their services with their attributes, notifications, behaviors
operations and actions supported by the managed object, defined by X.722/ISO
10165-4, a more complex object specification language than e.g. Concise MIB
or Common OV]
- GDS
- Global Directory Service [maintains a database of objects that may exist anywhere in the
world and enables DCE programs to access objects outside a cell]
- GDSC
- GSM DECT Site Controller [handling the control of DRS(2)s]
- GDSS
- Group Decision Support Systems
- GEA
- Gigabit Ethernet Alliance
- GEMS
- Generic Element Management Solution [formerly aka INMS]
- GEO
- Geostationary Earth Orbit [36000 km above ground]
- GFC
- Generic Flow Control [field, 4 b, part of ATM header, used by UNI]
- GfD
- Gesellschaft fuer Datenfunk [German consortium for mobile data services]
- GFLOPS
- Giga FLoating point OPerations per Second
- GFO
- German Field Organization [within HP]
- GFRI
- Global Formation and Regional Implementation team [within HP]
- GGT
- Global Governance Team
- GIBN
- Global Interoperability of Broadband Networks [international platform for the support of
common research and development projects, in telemedicine, telelearning and industrial
telecooperation]
- GIF
- Graphics Interchange Program [supported by CompuServe, Inc., based on LZW]
- GII
- Global Information Initiative [launched by the G-7 ministers, at a meeting
in Brussels, Belgium, February 25, 1995]
- GIOP
- General Inter-ORB Protocol
- GIP
- Global Internet Project
- GKV
- (German) GeschaeftsKundenVertrieb
- GLASS
- GLobally AcceSsible Services
- GLR
- Global Location Register
- GMSC
- Gateway MSC
- GMSK
- Gaussian Minimum Shift Keying [Characteristics of the GSM modulation]
- GMT
- GDMO Modeling Toolkit
- GNE
- Gateway Network Element
- GNIM
- Generic Network Information Model
- GNS
- Global Network Service [see CONCERT]
- GOD
- Global Operations Directorate [based on an integrated manager system, managing agents on
different vendor devices]
- GOS
- Grade Of Service
- GOSIP
- Government OSI Profile [government procedure Guidelines that mandate OSI(1) products from vendors]
- GPDS
- General Packet Data Service
- GPRS
- General Packet Radio Service
- GPS
- Global Positioning System
- GPSy
- Global Product and pricing System
- GPT
- GEC Plessey Telecommunications [UK based company; owned 60% by GEC and 40% by Siemens]
- GSDN
- Global Software Defined Network [ AT&T's VPN]
- GSM
- Global System for Mobile communications [originally: Groupe Speciale Mobile,
pan-European ISDN compatible digital cellphone standard (low
capacity-high mobility system, vs. DECT), frequency bands: 905-914
Mhz, 950-959 Mhz, on demand 890-915 Mhz and 935-960 Mhz, 2nd generation standard, phase 2+
implementations: hi speed data transmission (19.2 up to 64 kb/s), generalised packet radio
services, GSM900/DCS1800 dual-band operation, interworking between GSM900 and DECT, and CCBS(2), w/w 130 operators (Jan96)]
- GSS
- Generic Security Standard
- GTS
- Global Time Server [provides time in a DCE cell]
- GTT
- Global Title Translation
- GUI
- Graphical User Interface [part of OVw, e.g. X-Windows, prefered
alternative to CLI]
- GVPN
- Global VPN
- GW
- GateWay
- GWL
- GateWay Links
H
- HA
- High Availability
- HAL
- Hardware Abstraction Layer [integrated in MS(3)'s Windows NT]
- HAS
- (German) HauptAnSchluss
- HBCI
- Home Banking Computer Interface
- HDB
- Home Data Base
- HDLC
- High Level Data Link Control [standardized synchronous securing method]
- HD-MM CD
- High Density MultiMedia CD [developed by Sony/Philips, data storage capacity 7.4 GB or
up to 270 minutes video (MPEG 2)]
- HDSL
- High-bitrate Digital Subscriber Line [with bitrates of 2Mb/s, over symmetrical double
copper wires]
- HDTTS 50
- High Density Thumb Screw, 50 pin
- HDTTS 68
- High Density Thumb Screw, 68 pin
- HDTV
- High Definition TeleVision
- HEC
- Header Error Control [field, part of ATM header, 8b]
- HEMS
- High Level Entity Management System
- HFC
- Hybrid Fiber Coax
- HFS
- Hierarchical File System
- HIP
- HSSI Interface Processor
- HLC
- High Layer Compatibility
- HLC
- High Layer Compatibility
- HLD
- High-Level Design
- HLM
- Heterogenous LAN Management
- HLP
- High Level Parser [in FMP1.1: part of the DC(2), parses events to
identify header, footer and the event list]
- HLR
- Home Location Register [database, contains permanent subscriber information]
- HMA
- Human Machine Adaption [performs the conversion from the MAF
information model to the information model presented by the TMN to the PF by masking some dat, adding information and reorganizing the whole; also
supports authentication and authorization of users]
- HMMP
- HyperMedia Management Protocol [protocol for accessing components of the HMMS;
allows object-oriented access to managed objects; not to be used directly with web
browsers, but as the communications mechanism between components within a management
environment.]
- HMMS
- HyperMedia Management Schema (or Services) [schema for storing management information;
easily extensible; developed by MicroSoft]
- HMP
- Host Monitoring Protocol
- HMOM
- HyperMedia Object Manager [component of NetPC platform management
information technologies]
- HO
- Hand Over [e.g. of a voice channel between a mobile phone and one BTS
to the next BTS]
- HoB
- Head of Bus
- HP
- Hewlett Packard
- HPC
- High Performance Computing (or: Computer)
- HPLMN
- Home Public Land Mobile Network [vs. FPLMN]
- HPR
- High Performance Routing
- HPSL
- HP Support Line
- HR
- Human Ressources
- HRTF
- Head Related Transfer Function [within VR]
- HSC
- High Speed Connect
- HSCSD
- High Speed Circuit Switched Data
- HSD
- High Speed Data
- HSM
- Hierarchical Storage Management
- HSMR
- Hourly Status Message Report
- HSN
- Home Shopping Network(1) [US-Teleshopping channel]
Hopping Sequence Number(2)
- HSSI
- High Speed serial Interface [DXI interface, in broadband communication]
- HTML
- HyperText Markup Language [key specification of WWW, see also URL, HTTP and RFC 1942]
- HTTP
- HyperText Transfer Protocol [key specification of WWW, see also URL, HTML, RFC 1945]
I
- IAA
- IAM Acknowledge [B-ISDN user part message]
- IAB
- Internet Activities (or Architecture) Board [governing body of the Internet, decides
about e.g. standards]
- IAHC
- Internet Ad Hoc Committee
- IAM
- Initial Address (Message)(1)
ISDN Access Module(2)
- IAR
- IAM Reject [B-ISDN user part message]
- IAT
- Inter Arrival Time [(german) Zeit zwischen der Ankunft zweier ATM-Zellen
einer Verbindung]
- IBS
- Intelsat Business Service
- IBT
- International Business Traveller(1) [target market for MSS]
Intrinsic Burst Tolerance(2) [(German) annehmbare Burstgroesse]
- IC
- Interexchange Carriers(1) [see IXC]
Input Controller(2)
InterCompany(3) [HP internally]
- ICCS
- Integrated Communications Cabling System [offered by SIEMENS]
- ICD
- International Code Designator
- ICE
- Intergrated Capacity Expansion
- ICF
- Information Conversion Function(1) [used in intermediate systems to translate the
information model at one interface into the information model at the other interface, see
CCITT Rec. M.3010]
International Cryptography Framework(2) [new security solution for the internet and
eCommerce; details include a four part architecture; ICF consists of 1) a host system
which delivers secured applications to the end user, 2) a cryptographic unit (a hardware
based encryption engine), 3) a policy token (software that tells the cryptographic unit
what level of encryption is desired by company policy and allowed by governmental
restrictions) and 4) a network security server run by a certified organization]
- ICI
- Inter-Carrier Interface
- ICIP
- Inter-Carrier Interface Protocol
- ICMP
- Internet Control Message Protocol [part of IP for handling errors and
control messages, eg ping]
- ICO
- Intermediate Circular Orbit [for MSS, aka MEO]
- ICOEM
- IC(3)OEM
- ICP
- Independent Content Provider
- ICS
- Intuitive Command Structure
- ID
- IDentifier
- IDCT
- Inverse Discrete Cosine Transformation
- IDE
- Integrated Development Environment
- IDL
- Interface Definition Language [defined by OMG (CORBA IDL),
declaratory and more complex object specification language than e.g. Concise MIB or Common OV]
- IDLC
- Integrated Digital Loop Carrier
- IDN
- Integrated Digital Network(1)
Integriertes Text- und Datennetz(2) (German)
- IDNX
- Integrated Digital Network eXchange
- IDR
- Intermediate Data Rate
- IDSG
- Intelligente DatenSichtGeraete (German) [now: PCs]
- IE
- Internet Explorer [by MS(3)]
- IEC
- International Electrotechnical Commission(1) [see further information]
Interexchange Carrier(2)
- IET
- Instant Electronic Translation [future automatic high level language translation
capability]
- IETF
- Internet Engineering Task Force [subgroup of IAB, investigates and
solves technical problems, makes recommondations to the IAB, see also
IRTF]
- IF
- Intermediate Frequency
- IFC
- Internet Foundation Class
- IFF
- Identification Friend or Foe
- IFMP
- Interfacer to FMP Server
- IFMPS
- Interfacer to FMP Server [in FMP1.1: module in the
MD, which sends alarms to the IMD module. Supports bidirectional communication to IMD]
- IFU
- Instruction Fetch Unit
- IGES
- Initial Graphics Exchange Specification [Definition of a neutral file format for
interchange of 2D and 3D CAD information via indivually created translation programs]
- IGMP
- Internet Group Management Protocol
- IGOSS
- Industry/Government Open Systems Specification [(German) gemeinsame OSI-Beschaffungs-
und Betriebsspezifikationen der US-amerikanischen Regierung, der MAP/TOP-Gruppe und der amerikanischen Stromversorgungsunternehmen]
- IGRP
- Interior Gateway Routing Protocol [designed by Cisco; monitors the network to determine
the status of each route and selects the best route for each data packet]
- IIP
- Internet Imaging Protocol [developed by Eastman Kodak, Live Picture, Microsoft and Netscape; evaluation software available]
- IIOP
- Internet Inter-ORB Protocol [part of CORBA]
- IKMP
- Internet Key Management Protocol
- IKZ
- (German) ImpulsKennZeichen [traditional method of dual frequency switch control
protocol]
- ILMI
- Interim Local Management Interface [service, enables control of ATM
devices and mgmt of a network]
- IM
- Inventory Management
- IMACS
- Integrated MAnufacturing Control System
- IMD
- Interfacer to Mediation Device [in FMP1.1: module in the FMP server, which receives the alarms from the IFMPS module. Supports
bidirectional communication to IFMPS]
- IMEI
- International Mobile Equipment Identity [to be checked against the EIR
to avoid fraud]
- IMSI
- International Mobile Subscriber Identity
- IMT2000
- [see UMTS]
- IMTS
- Improved Mobile Telephone Service
- IN
- Intelligent Network [provides collect calls, 800 numbers, VPN and digital cellphone
systems, based on SS7 to transfer information]
- INA
- Information Network Architecure [platform which integrates TMN
technologies with DC technologies, specified by Bellcore]
- INAP
- Intelligent Network Application Part [protocol, ETSI Interconnection Standard]
- INCL
- Intelligent Networked Computing Laboratory
- IND
- Information Networks Division [part of STG]
- INE
- Intelligent Network Element
- INI
- Inter Network Interface
- INM
- Integrated Network Monitoring
- INMARSAT
- INternational MARitime SATellite organisation
- INMS
- Integrated Network Management System [composed of FMP, NPR and ARS]
- INS
- Intelligent Network Systems(1)
Integrated Network Servicing(2)
- INTELSAT
- INternational TELecommunications SATellite organization
- INTUG
- International Telecommunications Users Group
- IOR
- Interoperable Object References
- IP
- Intelligent Peripherals(1) [adjunct to an SCP, plays recorded
announcements to the caller to get more infos from digit dialling or voice recognition]
Internet Protocol(2) [with following addressing scheme: Class First Bits Address space Reserved for Intranets Network part Host part
A 0xxxxxxx 0.0.0.0-127.0.0.0 10.0.0.0-10.255.255.255 1 Byte 3 Byte
B 10xxxxxx 128.0.0.0-191.255.0.0 172.16.0.0-172.31.255.255 2 Byte 2 Byte
C 110xxxxx 192.0.0.0-223.255.255.0 192.168.0.0-192.168.255.255 3 Byte 1 Byte
D/E 111xxxxx 224.0.0.0-255.255.255.0 reserved 0 Byte
; see also RFC1597]
- IPC
- Inter-Process Communication [e.g. as used by EMN]
- IPF
- Information Processing Function
- IPI
- Internal Programming Interface [used by EMN]
- IPMH
- InterProcess Messaging Handling [part of NetExpert (OSI(2) product)]
- IPng
- Internet Protocol Next Generation [eg. based on an addressing schema with 16
Byte/address, or 1564 addresses/squaremeter on earth surface]
- IPP
- Internet Printing Protocol [suggested by IETF]
- IPRA
- Internet PCA Registration Authority
- IPSEC
- Internet Protocol SECurity (working group)
- IPSIT
- International Public Sector IT(1) group [formed by government
officials responsible for communication]
- IPSP
- IP Security Protocol [supports host-to-host security, and
subnet-to-subnet and host-to-subnet topologies]
- IPv6
- Internet Protocol Version 6 [aka IPng]
- IPX
- Internet Packet Exchange (protocol)
- IRB
- Instruction Reorder Buffer
- IRC
- Internet Relay Chat
- IRDA
- InfraRed Data Association [defined a standard for wireless local data exchange, up to
115.2 kbd, HP originated, detailed information]
- IRTF
- Internet Research Task Force [subgroup of IAB, see also IETF]
- IRV
- Initial Repeat Value
- IS
- International Standard [as defined by ISO]
- IS-41
- US Mobile Architecture
- IS-54
- US TDMA Standard
- IS-95
- US CDMA Standard
- IS-IS
- Intermediate System to Intermediate System protocol [ISO dynamic
routing protocol]
- ISD
- Internet Security Division(1) [HP entity]
Integrated Systems Division(2)
- ISDN
- Integrated Services Digital Network [basic rate: 2*64kb/s bearer channel (B) + 1*16kb/s
for establishing connection (D), primary access: 30*64kb/s (B) + 1*64 kb/s (D),
diensteintegrierendes digitales Fernmeldenetz (German), detailed
description]
- ISL
- Inter Satellite Links
- ISMS
- Integrated Service Management System [platform for different EMSs(2) to communicate with
each other, e.g. AT&T's Accumaster Workstation or MCI's INMS]
- ISN
- Internet School Networking (group) [see also RFC 1941]
- ISO
- International Standards Organisation(1) [with a standardization process flow from DP(1) to DIS to IS. See further information]
International Software Operation(2) [HP operation, located in Bangalore, India]
Information System Organisation (3) [HP operation, now renamed to IT Germany]
- ISP
- International Standardized Profile(1)
Internet Service Provider(2)
International Signaling Point(3)
Implementation Support Plan(4)
- ISS
- Internet Security Scanner
- ISSI
- Inter-Switching System Interface [(german) Schnittstelle zwischen zwei SMDS-Switches
innerhalb eines LATA]
- ISSIP
- Inter-Switching System Interface Protocol
- ISSL
- Internet and System Security Lab [HP lab]
- ISUP
- ISDN User Part [provides ISDN call setup and
control, harmonized to work with ISDN access protocol]
- ISV
- Independent Software Vendor [aka VAB]
- IT
- Information Technology(1)
Integrated Terminal(2)
Integration Test(3) [part of SVVP]
- ITA
- IT AdminCenter [ Detailed information]
- ITC
- Information Technology Center (Europe) [umbrella for the three HP Customer Centers in
Grenoble, Brussels and Boeblingen, for internal European IT customers]
- ITF
- Information Transport Function
- ITG
- Internet Technology Group [HP entity]
- ITI
- IT Infrastructure
- ITO
- IT Operation [HP application incorporating HP's industry leading
network management platform, HP OpenView Network Node Manager (NNM 4.1) and HP OpenView
OperationsCenter. Detailed
information]
- ITP
- Integrated Technology Planning
- ITSM
- IT Service Management
- ITT
- Invitation To Tender [Angebotsaufforderung (German)]
- ITU
- International Telecommunication Union
- ITU-T
- International Telecommunication Union - Telecommunications (Standardization) [formerly:
CCITT]
- ITU-TC
- International Telecommunication Union - Telecommunications Committee [formerly: CCITT]
- IVMO
- Initial Value of Managed Object
- IVoD
- Interactive Video on Demand
- IVPN
- International Virtual Private Networks
- IVR
- Intelligent Voice Recognition(1)
Interactive Voice Response(2)
- IVS
- Informations-Verarbeitungs-Service (German) [operated by the german Telekom, 134 sites,
controlling up to 20 UNIX-Server each, monitored by SCZ]
- IWG
- HP OpenView Integration Working Group
- IWS
- Integrated Workflow Services
- IWU
- (LAN) Interworking Unit [device for interconnecting LANs, e.g. bridge or router]
- IXC
- Interexchange Carriers Inter-Exchange Companies [long line companies, e.g. in the USA (w
marketshare): AT&T (65%), MCI (18%) or Sprint(10%), contrast and complement Local
Exchange Companies (LEC)]
- IuK
- Informations- und Kommunikationstechnik(en) (German)
J
- JAD
- Joint Analysis and Design
- JCG
- Joint Coordination Group
- JDBC
- Java DataBase Connectivity [interface definition for a database - application
communication, based on Java classes, SQL commands etc., see also ODBC]
- JDC
- Japan Digital Cellular [used by all service providers in Japan, with two frequencies
around 800MHz and 1.5GHz]
- JDK
- Jaja DeveloperKit
- JEPI
- Joint Electronic Payment Initiative
- JFS
- Journaled File System [aka LFS]
- JIT
- Just In Time
- JITT
- Just In Time Training [at the workspace, using multimedia technology]
- JMAPI
- Java Management API [from SUN]
- JPEG
- Joint Photographic Experts Group [ISO standards committee, also a
method of file compression and a graphics file format. See further details]
- JRTS
- Java Run Time System [an implementation of JVM for a specific
platform, i.e. hardware]
- JTAM
- Job Transfer And Management
- JTC
- Joint Technical Committee
- JTC 1
- Joint Technical Committee 1 [(German) gemeinsamer Ausschuss von ISO
und IEC, der speziell fuer Normung im Bereich der Informationstechnologie zustaendig ist]
- JTM
- Job Transfer and Manipulation
- JVM
- Java Virtual Machine
K
- KB
- Knowledge Based
- KDC
- Key Distribution Center [installed at a Kerberos server system]
- KDP
- Kansai Digital Phone Co. [in Osaka, Japan]
- KDS
- Key Distribution Service [part of the DCE security service]
- KIT
- (German) Kernsoftware fuer Intelligente Terminals [improved BTX standard]
- KMC
- Key Management Center [part of a central security facility for key generation and
distribution]
- KSP
- K-Successively-Shortest Link-Disjoint Path
L
- LA
- Location Area [typically a bundle of neighboured BTSs]
- LAC
- Local Area Communications
- LAL
- Log Access Library [internal module, developed for the HP OV DM 4.1 Event Mgmt system, for developing custom log retrieval modules]
- LAM
- Lobe Access Module
- LAN
- Local Area Network
- LANE
- Local Area Network Emulation [LAN emulation on a ATM
network]
- LAP-B
- Link Access Procedure - Balanced
- LAP-D
- Link Access Procedure - ? [access method within ISDN for level 2 of
the OSI model]
- LAPD
- Link Access Protocol for the D channel
- LATA
- Local Access and Transport Area [(german) Gebiet, in dem ein Telekommunikationsanbieter
Dienste offeriert]
- LC
- Local Currency
- LCN
- Local Communication Network
- LCP
- Link Control Protocol [a Data Link Connection]
- LCS
- Large Computer Strategies
- LCSN
- Local Computer Services Network
- LDAP
- Lightweight Directory Access Protocol [describes easy access by clients to X.500
services; see also RFC 1959]
- LDBL
- Low Density Bail-Lock [50 pin]
- LDC
- Long Distance Carrier [in USA; AT&T, MCI, Sprint]
- LDS
- Local Digital Switch
- LE
- Layer Entity(1)
Local Exchange(2)
- LEC
- Locale Exchange Carrier(1) [handle local call switching, complemented by LDCs]
LAN Emulation Client(2)
- LECS
- LAN Emulation Configuration Server
- LEN
- Line Equipment Number
- LEO
- Low Earth Orbiting (satellite) [as used in IRIDIUM (780 km), TELEDESIC (700 KM),
GLOBALSTAR (1400 km), in general: 700 to 2000 km above ground]
- LES
- Land Earth Station(1) [for MSS, e.g. Inmarsat relay stations]
LAN Emulation Server(2)
- LF
- Login Facility(1) [part of the DCE security service]
Line Feed(2)
- LFS
- Log structured File System [transaction oriented file system; similar to JFS]
- LGI
- Logistics Group International [one of 3 German CPO distribution companies]
- LHS
- Left-Hand Side
- LI
- Length Indicator [part of MSU]
- LIDB
- Line