R2511-HP MSR Router Series Voice Configuration Guide(V5)

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# Enable call transfer for the voice subscriber line of Telephone A.
<Sysname> system-view
[Sysname] subscriber-line 2/0
[Sysname-subscriber-line2/0] call-transfer enable
Configuring call backup
By default, the call backup function is enabled on the device.
The system supports two types of call backup:
• Strict call backup
One of the following three conditions will trigger strict call backup:
{ The device does not receive any reply from the peer after sending out a call request.
{ The device fails to initiate a call to the IP network side.
{ The device fails to register on the voice server.
• Loose call backup
Loose call backup is triggered if any of the above mentioned three conditions or the following
condition happens: the device receives a reject reply (with a number from 3xx to 6xx except 300,
301, 302, 305, 401, 407, and 422) after sending a call request.
To configure the call backup mode:
Ste
p
Command Remarks
1. Enter system view.
system-view N/A
2. Enter voice view.
voice-setup N/A
3. Specify the loose call backup
mode.
backup-rule loose
Optional.
By default, strict call backup is
applied.
4. Set the time duration for call
backup.
voip timer voip-to-pots time
Optional.
Defaults to 5 seconds.
For more information about the
voip timer voip-to-pots command,
see Voice Command Reference.
Configuring hunt group
This section describes the procedures for enabling and configuring a hunt group.
Configuration prerequisites
The router is equipped with an FXS voice interface card.
Enabling hunt group
To enable hunt group: