Table Of Contents

glossary

For terms or acronyms not listed below, see Internetworking Terms and Acronyms at the following URL:

http://www.cisco.com/univercd/cc/td/doc/cisintwk/ita/index.htm

A
AAA	authentication, authorization, and accounting
ALTDGK	alternate directory gatekeeper
AR	Cisco Access Registrar
ASAP	Cisco Any Service, Any Port solution
ASP	application service provider

B
BAMS	Cisco Billing and Measurements Server

C
CAC	call admission control
CBWFQ	class-based weighted fair queueing
CDR	call detail record
CEF	Cisco Express Forwarding
CHAP	Challenge Handshake Authentication Protocol
CIC	Cisco Info Center; carrier identification code
CLI	command line interface
CLID	Calling Line IDentification
CO	central office
CPU	central processing unit
CVM	CiscoWorks2000 Voice Manager

D
dCEF	Distributed Cisco Express Forwarding
DGK	directory gatekeeper
DNIS	Dialed Number Identification Service

E
EMEA	Europe, Middle East, and Africa
EMS	element management system
EO	end office

F
FG	feature group

G
GK	gatekeeper
GW	gateway

H
HDLC	high-level data link control
HSRP	Hot Standby Router Protocol—used to ensure GK fault tolerance

I
ICMP	Internet Control Message Protocol
ICPIF	ITU G.113 Calculated Planning Impairment Factor
IETF	Internet Engineering Task Force
IMT	intermachine trunk
IPM	Cisco Internetwork Performance Monitor
IS	in service
ISP	Internet service provider
ISUP	ISDN User Part
ITSP	Internet telephony service provider
ITU	International Telecommunication Union
IVR	interactive voice response

L
L2F	Layer 2 Forwarding Protocol
L2TP	Layer 2 Tunneling Protocol
LAC	L2TP access concentrator
LFI	Cisco Link Fragmentation and Interleaving
LLQ	low latency queuing
LNS	L2TP network server

M
MGC	Media Gateway Controller
MGCP	Media Gateway Control Protocol
MIB	Management Information Base
MLP	Multilink PPP
MML	Man-Machine Language
MMP	Multichassis Multilink PPP
MTP	Message Transfer Part

N
NAS	network access server
NMS	network management system
NTP	Network Time Protocol
NFAS	Non-Facility Associated Signaling

O
OGW	originating gateway
OLO	other local operator; other licensed operator
OOS	out of service
OPC	origination point code
OPT	Open Packet Telephony
OSP	Open Settlements Protocol
OSS	Operations Support System

P
PCM	pulse code modulation
PDF	Portable Document Format
PIN	personal identification number
POP	point of presence
PPM	port policy management
PPP	Point-to-Point Protocol
PSQM	perceptual speech quality measure
PSTN	public switched telephone network
PTT	Post, Telephone, Telegraph—a government-mandated or -operated national telephony carrier

Q
QoS	quality of service
QoV	quality of voice (SNMP)

R
RADIUS	Remote Authentication Dial-In User Service
RAI	resource availability indicator
RAS	H.225 Registration, Admission, and Status Protocol—spoken between H.323 gateways and their gatekeepers
RLM	Cisco Redundant Link Manager
RPM	resource pool management; resource pool manager
RPMS	Cisco Resource Policy Management Systgem (formerly Cisco Resource Pool Manager Server)
RSVP	Resource Reservation Protocol
RTCP	Real Time Conferencing Protocol; RTP Control Protocol
RTP	Real-Time Transport Protocol
RTR	Response Time Reporter

S
SC	signaling controller—a Cisco SC2200 signaling gateway that converts SS7 to a backhauled NI-2 protocol to gateways; see also VSC and MGC
SGBP	Stack Group Bidding Protocol
SGCP	Simple Gateway Control Protocol
SLIP	Serial Line Internet Protocol
SLT	signaling link termination; Cisco Signaling Link Terminal—a Cisco 2611 machine capable of terminating SS7 at the MTP2 layer and backhauling MTP3 (and up) to the SC2200 or virtual switch controller (VSC)
SNMP	Simple Network Management Protocol
SPE	system processing engine
SS7	Signaling System 7

T
TAC	Technical Assistance Center
TACACS	Terminal Access Controller Access Control System
TCL	Tool Command Language
TDM	time-division multiplex; time-division multiplexing
TFTP	Trivial File Transfer Protocol
TGW	terminating gateway

U
UG	universal gateway
UGM	Cisco Universal Gateway Manager
URL	uniform resource locator

V
VPDN	virtual private data (or dial) network
VPN	virtual private network
VSA	vendor-specific attribute—a nonstandard attribute tag used by RADIUS. Cisco has defined many useful VSAs to enhance the gateway CDR format.
VSC	virtual switch controller—one of various Cisco machines capable of providing SS7 signaling conversion, and able to control gateways by means of MGCP; referred to as the SC in this document
VWIC	Voice/WAN interface card

W
WFQ	weighted fair queuing
WIC	WAN interface card

Posted: Fri Nov 12 09:33:01 PST 2004
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