Command Reference Guide

178 ● hookoff-time 3Com Router 5000 Family and Router 6000 Family
Command Reference
hookoff-time
Purpose Use the hookoff-time command to configure the hangup timer. When this timer
times out, the interface hangs up.
Use the
undo hookoff-time command to cancel the setting of the hangup timer.
Syntax hookoff-time time
undo hookoff-time
Parameters time
Length of the hangup timer, in the range 60 to 36000
seconds. By default, no hangup timer is set.
Example Set the hangup timer to 500 seconds.
[Router-voice-line3/0/0] hookoff-time 500
View This command can be used in the following views:
■ FXO Voice Subscriber-Line view
Description In some countries, PBXs do not play busy tone; if they play, the busy tone only lasts a
short period of time. When noise is present on a transmission link, the
silence-th-span command may be inadequate for solving the problem that the
FXO interface does not hang up. In this case, you may use the
hookoff-time
command to address the problem.
Once configured the hookoff-time command takes effect on all interfaces on the
card.