Command Reference Guide

302 ● tunnel-on 3Com Router 5000 Family and Router 6000 Family
Command Reference
tunnel-on
Purpose Use the tunnel-on command to enable tunnel function.
Use the undo tunnel-on command to disable tunnel function.
Syntax tunnel-on
undo tunnel-on
Parameters None
Default By default, the tunnel function is disabled.
Example Enable the tunnel function for VoIP voice entity 10.
[Router-voice-dial-entity10] fast-connect
[Router-voice-dial-entity10] tunnel-on
View This command can be used in the following views:
■ VoIP Voice Entity view
Description Tunnel function can assist in negotiating process of such nonstandard H.245 message
as transmitting DTMF code transparently.
Only after successfully enabling the fast connect mode, can one fulfill the
configuration of tunnel function. As the calling gateway, it can be decided whether or
not to enable the tunnel function for each call on the router. Being the called
gateway, it shall be decided whether or not to enable the tunnel function based on
the status of the calling gateway. That is, if the function is enabled on calling gateway,
it will also be enabled on the called gateway. Otherwise, tunnel function is disabled
on both sides. In order to transmit DTMF code transparently via the fast connect
mode, the tunnel function must be enabled. Otherwise DTMF code cannot be
transmitted.
During actual configuration, it is only necessary to fulfill this command for the VoIP
voice entity at the calling gateway.
Related Commands ■ fast-connect
■ outband