HP MSR2000/3000/4000 Router Series Voice Command Reference

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Use undo hookoff-time to disable forced on-hook.
Syntax
hookoff-time time
undo hookoff-time
Default
Forced on-hook is disabled.
Views
FXO interface view
Predefined user roles
network-admin
Parameters
time: Specifies the time from off-hook to forced on-hook, in the range of 60 to 36000 seconds.
Usage guidelines
In some countries, PBXs do not play busy tones, or the busy tones only last for a short period of time.
When noise is present on a link, even the silence detection-based automatic on-hook function
(silence-detect threshold) cannot detect the busy tones and fails to release the call after on-hook. To solve
this problem, configure forced on-hook. Forced on-hook disconnects a call when the specified time
expires, even if the call is ongoing.
This command takes effect on all FXO interfaces of the card.
Examples
# Configure forced on-hook and specify the timer as 500 seconds.
<Sysname> system-view
[Sysname] subscriber-line 1/0
[Sysname-subscriber-line1/0] hookoff-time 500
Related commands
silence-detect threshold
impedance
Use impedance to set the electrical impedance on an FXO or FXS interface.
Use undo impedance to restore the default.
Syntax
impedance { country-name | R550 | R600 | R650 | R700 | R750 | R800 | R850 | R900 | R950 }
undo impedance
Default
An FXO or FXS interface uses the electrical impedance of China.
Views
FXO interface view, FXS interface view