No conference at remote site via WAN

Unanswered Question
Feb 14th, 2008


i have call Manager 5.1 and the phones that resides at remote site via WAN.

i have used at local sie the G711 codec and via the WAN i have used G729.The problem is that the conference feature is not activated at the remote site.


I have this problem too.
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Jaime Valencia Thu, 02/14/2008 - 20:27

if you're using the SW conference bridge it only supports G711.

If you need to enable conference for the remote users and to keep using G729 add a HW CFB or XCODER


dbenattou Fri, 02/15/2008 - 00:29


thanks for reply, but how can i do this.

Please let me know.

Thanks at advance

Jaime Valencia Fri, 02/15/2008 - 10:31

First of all you need DSP resources in a router to do this, if you have them the following links have the instructions on how to configure any of which i mentioned (HW CFB / XCODER)

Of course that after the configuration you need to arrange the MRGL to have the remote phones use them

Configuring Enhanced Conferencing and Transcoding for Voice Gateway Routers

CallManager and IOS Gateway DSP Farm Configuration Example



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