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List of terms
Nortel Multiservice Switch 7400/15000/20000
Terminology
NN10600-005 7.2S1 Standard
PCR7.2 and up March 2006
Copyright © 2006, Nortel Nortel Confidential
V5.2
An interface specification defined in the ETSI EN 300 324-1 and
ETSI
EN 300 347-1 standards. A V5.2 interface connects a local exchange in
a PSTN network to a number of remote end users.
variable
The field in a component name that can be used to store an attribute. The
attribute denotes the external representation of a variable. A variable is the
internal representation of an attribute.
variable bit rate (VBR)
See non-real time variable bit rate (NRT-VBR) (page 91) and real time variable
bit rate (rt-VBR) (page 111).
VBD
See voice band data (VBD) (page 145).
VBR
See variable bit rate (VBR) (page 140).
VBR shaping
See inverse-UPC shaping (page 68).
VC
1 See virtual channel (VC), ATM networking (page 141).
2 See virtual circuit (VC), frame relay networking (page 142).
VCC
See virtual channel connection (VCC) (page 141).
VCI
See virtual channel identifier (VCI) (page 141).
VCL
See virtual channel link (VCL) (page 141).
VC ping
A command used to determine the path of a frame relay VC or the round trip
delay of the frame relay VC. See
“ping” (page 102).
VCS
See Virtual Circuit System (VCS) (page 142).
VGCP
See voice gateway control protocol (VGCP) (page 145).