A |
|
AAA | authentication, authorization and accounting |
ACL | Access Control List |
ADM | Add/Drop Multiplexer (typically used to interconnect slow links with fast links on an SDH link) |
AIS | Alarm Indication Signal |
AMI | alternate mask inversion |
ATM | Asynchronous Transfer Mode |
AUSM | ATM User Service Module (Narrowband) |
AXSM | ATM Switch Service Module (Broadband) |
B |
|
B8ZS | binary 8-zero substitution |
BCA | Basic Cabinet |
BERT | bit error rate tester |
BGP | Border Gateway Protocol |
BRA | Basic Rate Access |
BRI | Basic Rate Interface |
BSH | Basic Service Handler (component of the iMSS Call Agent) |
C |
|
C12KM | Cisco 12000 Manager |
CAC | Call Admission Control |
CAR | Cisco Access Registrar |
CAS | Communicating Applications Specification |
CCD | Clear Channel Data |
CCS | Channel Associated Signalling |
CDR | Call Detail Record |
CEMF | Cisco Element Management Framework |
CIF | Cisco Info Center |
Cisco IOS | Cisco Internetwork Operating System |
CLASS | Custom Local Area Signalling Services |
CLASS 4 | Telephone switch offering only long distance services |
CLASS 5 | Telephone switch offering advanced call features and local access |
CLEC | Competitive Local Exchange Carrier. Also called Other Local Operator |
CLI | Calling Line Identification |
CNOTE | Cisco CNS Notification Engine |
CNS | Cisco Networking Services |
CO | Central Office |
codec | coder-decoder |
CORBA | Common Object Request Broker Architecture |
CoS | class of service |
CPE | Customer Premise Equipment |
CPS | Centralized Processing Server (component of the iMSS Call Agent) |
CS1 | Capability Set 1 |
CSM | Cisco Service Management |
CW2K | CiscoWorks 2000 |
CWM | Cisco WAN Manager |
D |
|
DFC | Dial Feature Card |
DiffServ | Differentiated Services. The use of ToS bits in the IP header to indicate traffic importance and drop preference |
DNIS | Dial Number Identification Service |
DNS | Domain Name System |
DPC | Destination Point Code |
DS0 | digital service zero (0). 64 Kbps POTS telephone line, encoded using PCM |
DSCP | DiffServ Code Point |
DSP | Digital Signal Processor |
DSS1 | Digital Subscriber Signalling System Number 1 |
E |
|
egress | Traffic leaving the network |
EMS | element management system |
ETSI | European Telecommunications Standards Institute |
F |
|
FTM | Fault and Trouble Manager |
FTP | File Transfer Protocol |
G |
|
GK | Gatekeeper |
GW | Gateway |
H |
|
HSRP | Hot Standby Router Protocol |
I |
|
IAD | Integrated Access Device |
IAM | Initial Address Message |
IFAM | Initial Forward and/or Final Address Message |
IGP | Interior Gateway Protocol |
ILEC | Incumbent Local Exchange Carrier |
iMCP | Intra Module Control Protocol |
iMSS | Italtel Multiservice Switching System |
IMT | intermachine trunk (trunk used between CLASS 4 switches) |
IN | Intelligent Network |
INAP | Intelligent Network Application Part |
ingress | Traffic entering the network |
IOS | See Cisco IOS |
IP | Internet Protocol |
IPM | Internetwork Performance Monitor |
ISDN | Integrated Services Digital Network |
IS-IS | Intermediate System-to-Intermediate System |
ISM | Interconnection Structure Module (component of the iMSS Call Agent) |
ISUP | ISDN User Part |
ITP | IP Transfer Point |
ITU-T | International Telecommunications Union Telecommunications Standardization Sector |
IVR | Interactive Voice Response |
IVS | Inter Virtual Switch |
L |
|
LDAP | Lightweight Directory Access Protocol |
LDP | Label Distribution Protocol |
LDS | Local Digital Switch (typically a Class 5 switch) |
LE | Local Exchange |
LER | Label Edge Router |
LNP | Local Number Portability |
LSR | Label Switch Router |
M |
|
MGC | Media Gateway Controller |
MGCP | Media Gateway Control Protocol, RFC2705. Version 0.1 is the November 1998 version of this RFC, which is available as an (expired) Internet Draft |
MMF | multimode fibre |
MPLS | Multiprotocol Label Switching |
MSC | Mobile Switching Center |
MSEM | Multiservice Element Manager |
N |
|
NAS | network access server |
NB | Narrow Band |
NMS | Network Management System |
NOC | Network Operations Center |
NRDB | Network Resource Database |
NSE | Named Signaling Events. Used within Voice over IP RTP streams to indicate in-band signaling. Functionally equivalent to AAL2 type 3 packets in AAL2 |
NTS | Number Translation Service |
O |
|
O&M | Operations and Maintenance |
OLO | Other Local Operator. Also called Competitive Local Exchange Carrier |
OMS | Operation and Maintenance Server (component of the iMSS Call Agent) |
OPC | Originating Point Code |
OPM | Optical Peripheral Module (component of the iMSS Call Agent) |
OPT | Open Packet Telephony |
OSPF | Open Shortest Path First |
OSS | Operations Support System |
P |
|
P | Provider Router |
PABX | private automatic branch exchange (Europe) |
PBX | private branch exchange (U.S.) |
PC | Point Code |
PE | Provider Edge Router |
PEB | Pan European Backbone |
PHS | Protocol Handling Server (component of the iMSS Call Agent) |
PLMN | public land mobile network |
PoI | Point of Interconnection |
POP | point of presence |
POS | Packet Over SONET |
POTS | plain old telephone service (typically considered an analog phone connected with an RJ11 jack with normal telephone service) |
PRA | Primary Rate Access |
PRI | Primary Rate Interface |
PSTN | Public Switched Telephone Network |
PTT | Public Telephone and Telegraph (typically the major government-owned incumbent telephone company in a country) |
PVC | permanent virtual circuit |
PXM | Processor Switch Module |
Q |
|
QoS | Quality of Service |
R |
|
RADIUS | Remote Authentication Dial-In User Service |
RAI | Remote Alarm Indication |
RME | Resource Manager Essentials |
RPM | Route Processor Module |
RSVP | Resource Reservation Protocol |
RTCP | Real Time Control Protocol |
RTM | Real-Time Monitor |
RTP | Real-Time Transport Protocol. Used by Voice over IP to send voice bearer traffic and can also carry CAS traffic using Named Signaling Events (see NSE) |
S |
|
SASE | Stand Alone Synchronization Equipment |
SCM | Service Configuration Manager |
SCP | Service Control Point |
SDF | Service Data Function |
SDH | Synchronous Digital Hierarchy (approximately equivalent to SONET used in US and Japan) |
SG | Signalling Gateway |
SGCP | Simple Gateway Control Protocol |
SIP | Session Initiation Protocol |
SLA | Service Level Agreement |
SLR | Service Location Register |
SLT | Signalling Link Terminal |
SMFIR | single mode fibre intermediate range |
SMS | Short Message Service |
SN | Service Node |
SNMP | Simple Network Management Protocol |
SONET | Synchronous Optical NETwork |
SRCP | Simple Resource Control Protocol |
SRI | Send Routing Information |
SRM | Service Resource Module |
SRM/E | Enhanced Service Resource Module |
SS7 | Signalling System 7 |
SSP | Service Switching Point |
STM-1 | Synchronous Transport Module, level 1 (2,016 DS0s, 155.52 Mb data rate—equivalent to OC-3 used in U.S. and Japan) |
STM-4 | Synchronous Transport Module, level 4 (8,064 DS0s, 622.080 Mb data rate—equivalent to OC-12 used in U.S. and Japan) |
STP | Signal Transfer Point |
T |
|
TCAP | Transaction Capabilities Application Part |
TCP | Transmission Control Protocol |
TDM | time-division multiplexing |
TDP | Tag Distribution Protocol |
TFTP | Trivial File Transfer Protocol |
TGW | Trunking Gateway |
TMN | Telecommunications Managed Networks |
ToS | Type of Service |
T/PM | Traffic and Performance Manager |
TSC | Transit Switching Center |
U |
|
UDP | User Datagram Protocol |
UGM | Universal Gateway Manager |
V |
|
V5 | ETSI family of interface specifications for connections between Local Exchanges and Access Networks. V5.1 is the specification for multiplex type access networks. V5.2 is the specification for concentrator type networks. |
VAD | Voice Activity Detection. Also called "silence suppression" |
VC | virtual circuit (virtual channel) |
VCI | virtual circuit identifier (virtual channel identifier) |
VISM | Voice Interworking Service Module |
VLAN | Virtual LAN (local area network) |
VoIP | Voice over IP |
VP | virtual path |
VPI | virtual path identifier |
VPN | Virtual Private Network |
VPS | Voice Processing System |
VTCH | Virtual Termination Call Handler (component of the iMSS Call Agent) |
VTN | Virtual Transit Network |
W |
|
WAN | wide-area network |