|
A-F,
G-N,
O-T,
R-Z |
|
A-links |
Access Links |
|
ACM |
Applications Communications Module |
|
AFTPC |
Affected Point Code |
|
AIN |
Advanced Intelligent Networks. Bellcore’s set of of standards for advanced intelligent services for the telephone networks of Regional Bell Operating Companies. |
|
AINF |
Application Interface Applique |
|
ANSI |
American National Standards Institute. The coordinating body for voluntary standards group within the United States. ANSI is a member of the International Organization for Standardization (ISO). |
|
ASE |
Application Services Element |
|
ASM |
Application Services Module |
|
ASM-GLS |
Application Services Module with the GLS application |
|
ASM-SCCP |
Application Services Module with the SCCP application
|
|
ATM |
Asynchronous Transfer Mode. A broadband, low-delay, packet-based switching and multiplexing technique. Usable capacity is segmented into fixed-size cells, consisting of header and information fields, allocated to services on demand. |
A-F,
G-N,
O-T,
R-Z
Top of page
|
|
B-links |
Bridge Links |
|
BITS |
Building Integrated Timing Supply |
|
BLKDPC |
Blocked Destination Point Code |
|
BLKOPC |
Blocked Originating Point Code |
|
BRI |
Basic Rate Interface. One interface type used to access the Integrated Service Digital Network. The BRI allows two simultaneous calls across a single pair of copper wires. |
A-F,
G-N,
O-T,
R-Z
Top of page
|
|
C-links |
Cross-Links |
|
CAP |
Communication Application Processor |
|
CCITT |
International Telephone and Telegraph Consultative Committee. A United Nations organization which establishes international telecommunications standards. |
|
CCS |
Common Channel Signaling |
|
CCS7 |
Common Channel Signaling |
|
CCS7ITU |
The application software for ITU SS7 signaling links |
|
CDPA |
Calling Party Address |
|
CF |
Control Frame |
|
CGPA |
Calling Party Address |
|
CLASS |
Custom Local Area Signaling Service |
|
Cmd
Rej |
Command Rejected |
|
CMIP |
Common Management Information Protocol |
|
CMISE |
Common Management Information Service Element |
|
CNAM |
Calling Name Delivery Service |
|
CPC |
Capability Point Code |
|
CRMD |
Cluster Routing and Management Diversity |
|
CSPC |
Concerned Signaling Point Code |
A-F,
G-N,
O-T,
R-Z
Top of page
|
|
DB
or DB# |
Database |
|
DC |
Direct Current |
|
DLK |
Data Link |
|
DMS |
Disk Management System |
|
DPC |
Destination Point Code |
|
DRAM |
Dynamic Random Access Memory |
|
DS0 |
Digital Signal Level-0 (64 Kbits/sec) |
|
DS1 |
Digital Signal Level-1 (1.544Mbits/sec) |
|
DTA |
Database Transport Access |
A-F,
G-N,
O-T,
R-Z
Top of page
|
|
E-1 |
European Digital Signal Level-1 (2.048 Mbits/sec). The European telecommunications standard defining circuits that operate at speeds of 2.048 Mbps, similar to T1 lines in the United States. |
|
EBI |
Extended Bus Interface |
|
ECSA |
Exchange Carrier Standards Association |
|
EF |
Extension Frame |
|
EIA |
Electronic Industries Association |
|
ELEI |
Exception List Exclusion Indicator |
|
EMS |
Element Management System |
|
EPRI |
The end range of a range of priority values in the service information octet. |
|
Ethernet |
A standard set of specifications for a particular type of LAN that employs baseband signaling (single signal on a cable) and has a transmission rate of 10Mbps. |
|
ETT |
Existing SS7 Message Translation Type |
A-F,
G-N,
O-T,
R-Z
Top of page
|
|
Fast Ethernet |
100 Mbps’ technology for workstation LANs from the eponymous Fast Ethernet Alliance, which includes 3Com and SynOptics. It has been adopted by the IEEE and the basis for the 100BaseT Ethernet standard. |
|
FD |
Fixed Disk |
|
FDDI |
Fiber Distributed Data Interface. A standard for operating fiber optic-based LANs at 110 Mbps used for high speed and backbone applications. |
|
FITS |
Failure in one billion Hours |
|
Frame Relay |
A variable length packet-based transmission technology that is used to transmit data at speeds up to 2 Mbps. |
A-F,
G-N,
O-T,
R-Z
Top of page
|
|
GAN |
Global Area Network. A network of computers connected across countries. |
|
GDMO |
Guidelines for the Definition of Managed Objects |
|
GLS |
Gateway Loading Services – The application software for the gateway screening loading services |
|
GLP |
Generic Program Load |
|
GRT |
Gateway Routing Table |
|
GSM |
Global Systems for Mobile. The standard for a set of protocols for digital wireless initially deployed in Europe. |
|
GT |
Global Title Routing Indicator |
|
GTT |
Global Title Translation |
|
GUI |
Graphical User Interface |
|
GWS |
Gateway Screening |
|
GWSA |
Gateway Screening Application |
|
GWSD |
Gateway Screening Message Discard |
|
GWSM |
Gateway Screening Messages |
A-F,
G-N,
O-T,
R-Z
Top of page
|
|
HLR |
Home Location Register |
|
IEEE |
Institute of Electronic and Electronic Engineers |
|
IMT |
Interprocessor Message Transport |
|
IN |
Intelligent Network. An out-of-band, packet switched overlay network to the in-band Public Switched Telephone Network (PSTN). The Intelligent Netowrk minimally consists of SS7-equipped Central Offices (Service Switching Points, or SSPs), packet switches (Signal Transfer Points, or STPs) and databases (Service Control Points, or SCPs). |
|
INMAP |
IN Mediation Access Point |
|
Internet |
The worldwide system of linked networks that is capable of exchanging mail and data through a common addressing and naming system based on TCP/IP protocols. |
|
Intranet |
A private network that uses Internet software and standards. |
|
IP |
Internet Protocol |
|
IPMX |
IMT Power and Multiplexer Card |
|
ISDN |
Integrated Services Digital Network. Public digital communications services supporting a wide range of data, voice and image services accessed by standard interfaces integrated with customer control. |
|
IS.41 |
One of the Interim Standards for North American mobile applications for digital cellular. |
|
IS-NR |
In Service – Normal |
|
ISUP |
ISDN User Part |
|
ITU |
International Telecommunications Union |
|
ITU-TS |
ITU Telecommunications Standards |
A-F,
G-N,
O-T,
R-Z
Top of page
|
|
Kbits |
Kilobits (1,000 bits) |
|
LAN |
Local Area Network. A type of high-speed data communications arrangement in which multiple computer and related products in an office or campus environment are connected by means of a standard transmission medium (typicallly coaxial cable, twisted-pair wire or optical fiber). |
|
LBP |
Far-End Loop Back Point |
|
LC |
Logical Channel |
|
LC2NM |
Logical Channel to Network Management |
|
LFS |
Link Fault Sectionalization |
|
LIDB |
Line Information Data Base |
|
LIM |
Link Interface Module |
|
LIM-AINF |
A LIM with a software-selectable interface |
|
LLT |
Latching LFS Test |
|
LNP |
Local Number Portability |
|
LRN |
Location Routing Number |
|
LS |
Link Set |
|
LSMS |
Local Service Management System |
|
LSN |
Link Set Name |
A-F,
G-N,
O-T,
R-Z
Top of page
|
|
MAC |
Media Access Control |
|
MAN |
Metropolitan Area Network. A high-speed network designed to link together sites in a metropolitan or campus area. The IEEE has defined its 802.6 standard for MANs based on the Distributed Queue Dual Bus technology. |
|
MAP |
Mated Application Part |
|
MAS |
Maintenance and Administration Subsystem |
|
MASP |
Maintenance and Administration Subsystem Processor |
|
Mbits / Mbps |
Megabits (1,000,000 bits) / second. A measurement unit, equal to 1,048,576 bits per second, used to describe data transfer rates as a function of time. |
|
Mbytes |
Megabytes (1,000,000 Bytes) |
|
MCAP |
MAS Communication Application Processor Card |
|
MD5 |
Message Digest (Version 5) |
|
MDAL |
Maintenance Disk and Alarm Card |
|
MF |
Miscellaneous Frame |
|
MO |
Managed Object |
|
MPC |
Mate Point Code |
|
MRN |
Message Reference Number |
|
MSSN |
Mate Subsystem Number |
|
MSC |
Mobile Switching Center. A switch that coordinates trunk call set-up to and from users in a digital cellular network. |
|
MSU |
(SS7) Message Signalling Unit |
|
MTBT |
Mean Time Between Failures |
|
MTP |
Message Transfer Part |
|
MTT |
Mapped SS7 Message Translation Type |
|
MTTR |
Mean Time to Repair |
|
MULT |
The multiplicity indicator for a mated point code |
A-F,
G-N,
O-T,
R-Z
Top of page
|
|
NE |
Network Element |
|
NEBS |
Network Equipment Building System |
|
NEI |
Network Element Interface |
|
NGT |
New Global Title |
|
NI |
The network identifier for an ANSI point code, expressed as ni-nc-ncm. |
|
NLT |
Nonlatching LFS Test |
|
NPA |
Number Planning Area (Area Code) |
|
NPAC |
Number Portability Administration Center |
|
NSP |
Network Services Part |
|
NSFI |
Next Screening Function Identifier |
|
NSR |
Next Screening Reference |
|
NXX |
Exchange Code |
A-F,
G-N,
O-T,
R-Z
Top of page
|
|
OA&M |
Operations, Administration, and Maintenanc |
|
OAP |
Operations System Support / Applications Processor |
|
OCN |
Operating Company Number |
|
OCU |
Office Channel Unit |
|
OMAP |
Operations, Maintenance and Administration Part |
|
OOS-MT-DSBLD |
Out of Service – Maintenance Disabled |
|
OPC |
Origination Point Code |
|
OSI |
Open System Interconnection |
A-F,
G-N,
O-T,
R-Z
Top of page
|
|
Packet Switching |
A data transmission technique whereby user information is segmented and routed in discrete data envelopes called packets, each with its own appended control information for routing, sequencing and error checking. |
|
PCM |
Pulse Code Modulation |
|
PCS |
Personal Communications Systems. A set of evolving standards and protocols providing for the concept of one number per user and associated advanced intelligent services regardless of location primarily involving mobile communications. |
|
PDC |
Personal Digital Communications. A set of protocol standards for Japanese digital cellular mobile network promulgated by NEC. |
|
PM |
Processing Module |
|
PRI |
The priority of a single message or the beginning message priority in a range of priorities in the service information octet |
|
Protocol |
A formal set of standards governing the establishment of a communications link and controlling the format and timing of transmissions between two devices. |
|
PST |
Primary State for Maintenance |
|
PVC |
Permanent Virtual Circuit |
A-F,
G-N,
O-T,
R-Z
Top of page
|
|
Q.3 |
Q.3 Protocol |
|
RAID |
Redundant Array of Inexpensive Disks |
|
RAM |
Random Access Memory |
|
RBOCs |
Regional Bell Operating Companies. Telephone companies created in 1984 as a result of the break-up of AT&T. |
|
RD |
Removable Disk |
|
REF |
An indicator of whether the specified screening table is referenced by another screening table. |
|
RI |
The routing indicator in the called party address (CDPA). |
|
RLE |
Remote Link Element |
|
RLI |
Remote Link Interface |
A-F,
G-N,
O-T,
R-Z
Top of page
|
|
SADDR |
A pseudo X.25 network address used to address an SS7 application entity |
|
SCC |
Switching Control Centers |
|
SCCS |
Switching Control Center System |
|
SCCP |
Signal Connection Control Part |
|
SCE |
Service Creation Environments. An application in the Advanced Intelligent Network which allows for the development and customization of new telephone services, utilizing Advanced Intelligent Network (AIN) "building blocks". Using customized Service Information Blocks (SIBs) and "triggers", users describe services such as time-of-day routing. These descriptions are loaded into Service Control Points (SCPs) or Service Nodes (SNs) for execution in the network. |
|
SCP |
Service Control Point. A computer database that is accessed by STPs for customer call routing information and other special information required for AIN services. |
|
SCRN |
Screen Set Name |
|
SCRSET |
Screen Set |
|
SCSI |
Small Computer Systems Interface |
|
Signaling |
The process by which digital information is exchanged to establish, control and manage connections in a network. |
|
SIO |
Service Indicator Octet |
|
SLSCI |
5- to 8-bit SLS Conversion Indicator |
|
SMDS |
Switched Multi-megabit Data Service. A communications service providing high-speed connectionless data transport. |
|
SMS |
Service Management System. A proprietary application which provides the user with a maintenance and administration interface to various IN and AIN network elements. |
|
SOA |
Service Order Administration |
|
SP |
Service Provider |
|
SP |
Signaling Point |
|
SPC |
Stored Program Controlled |
|
SP-LNP |
Service Provider Local Number Portability. A capability mandated by the Federal Communications Commission in June, 1996 which allows telephone customers to change their local service provider without changing their telephone number. Adding SP-LNP capabilities to the Public Switched Telephone Network requires the introduction of three new network elements and new software capabilities in virtually every existing network element. |
|
SPMO |
Service Provider Managed Object |
|
SR |
The name of the screening reference. |
|
SS7 |
Signaling System Number 7. A complex protocol which governs signaling between certain devices in a digital telephone network. |
|
SS7ANSI |
The application software for the ANSI SS7 signaling links |
|
SS7GX25 |
The application software for the X.25/SS7 gateway feature |
|
SSN |
Subsystem Number |
|
SSP |
Service Switching Point. An SSP is a component of the central office switch that sets up trunk connections. When an SSP identifies an AIN call, it routes a signaling message to the STP and awaits further instructions for call processing. |
|
SST |
Secondary State for Maintenance |
|
STP |
Signaling Transfer Point. An STP is a switch that handles the signaling messages used to set up telephone calls, queries external databases for routing and processing information and dispatches call handling instructions. |
|
STP
LAN |
An EAGLE feature that copies MSUs selected through the gateway screening process and sends these MSUs over the ethernet to an external host computer for further processing |
|
STPLAN |
The application software for the STP LAN feature |
|
SVCA |
Automatic Switched Virtual Circuit |
|
SVCR |
Remote Switched Virtual Circuit |
|
SW |
Software |
A-F,
G-N,
O-T,
R-Z
Top of page
|
|
T1 |
The North American telecommunications standard defining a circuit that multiplexes and switches 24 channels and operates at speeds of 1.544 Mbps (T3 is the equivalent of 27 T1 circuits) |
|
TCAP |
Transaction Capabilities Applications |
|
TCP |
Transport Control Protocol |
|
TCP/IP |
Transmission Control Protocol/Internet Protocol. The common name for the suite of protocols developed by the U.S. Department of Defense in the 1970s to support the construction of worldwide internetworks. TCP and IP are the two best-known protocols in the suite. TCP corresponds to Layer 4 (the transport layer) of the OSI reference model and provides connectionless datagram service. |
|
TDM |
Terminal Disk Module |
|
TFATCABMLQ |
The TFA/TCA broadcast minimum link quantity |
|
TFATFRPR |
The TFA/TFR pacing rate |
|
TMN |
Telecommunication Management Network |
|
TN |
Telephone Number |
|
TSET |
Transmitter Signaling Element Timing |
|
TSM |
Translation Services Module |
|
TT |
Translation Type |
A-F,
G-N,
O-T,
R-Z
Top of page
|
|
UAM |
Unsolicited Alarm Message |
|
UDTS |
Unit Data Transfer Service |
|
UID |
User ID |
|
V.35 |
ITU Interface Recommendation, V.35 |
|
VDT |
Video Display Terminal |
|
WAN |
Wide Area Network. A network that extends beyond the distance that can be accommodated by local cabling methods. A WAN typically utilizes public carrier services to connect sites, which may span a city, state, country or the world. |
|
X.25 |
A protocol for transfer of information across packet data networks. X.25 was the first packet data technology to be widely implemented. |
|
XDSL |
Another name for an ISDN BRI channel. Operated at the Basic Rate Interface (with two 64 kbps circuit switched channels), the DSL can carry both voice and data signals at the same time, in both directions, as well as the signaling data used for call information and customer data. |
|
X-list |
Exception list of non-provisioned members of provisioned cluster. |
|
XLAT |
Translate Indicator |
|
XPC |
A pseudo point code, along with a pseudo subsystem number, used by the SS7 network to address an X.25 application entity. |
|
XSSN |
A pseudo subsystem number, along with a pseudo point code, used by the SS7 network to address an X.25 application entity. |
A-F,
G-N,
O-T,
R-Z
Top of
page
|
