Command Reference Guide

36 ● cng-on 3Com Router 5000 Family and Router 6000 Family
Command Reference
cng-on
Purpose Use the cng-on command to enable comfort noise function.
Use the
undo cng-on command to disable the comfort noise function,
Syntax cng-on
undo cng-on
Parameters None
Default By default, comfort noise setting is enabled.
Example Disable comfort noise function on subscriber line 1/0/0.
[Router-voice-line1/0/0] undo cng-on
View This command can be used in the following views:
■ Voice subscriber-Line view
Description This command is applicable to FXO, FXS, E&M subscriber-lines and digital E1 voice
subscriber-line. When the silence detecting function on a corresponding voice entity is
enabled, some background noise can be generated by using the command to fill the
toneless intervals during a conversation. If no comfort noise is generated, the toneless
intervals during a conversation will cause the interlocutors uncomfortable.
Related Commands ■ subscriber-line
■ vad-on