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New Member

Help DSP resourses same codec

Hello guys,

I am with a scenario and rised a doubt.

In a VoIP scenario, Cisco normally recommends that we use G711 at LAN side since has nice MOS and G729 if the call have to go trough WAN to reach another destination.

But unfortunatelly we must transcode G711 to G729 to ever call that is placed and will consume DSP resourses.

But my doubt:

The MOS of G729 codec is quiet great. Can we force to all LAN calls use the G729 codec? So that, since the WAN calls will use G729 too, it will not consume DSP resourses because as know, same codecs does not consume PVDM's.

Finally client will reduce with bandwith cost and also with PVDM resourses since transcode will be not necessary.

Make sense?

Thanks!

Alan.

1 ACCEPTED SOLUTION

Accepted Solutions
Cisco Employee

Help DSP resourses same codec

Hi Alan,

Yes, you can force all calls to use G729 from the call manager using region settings.

If you configure the region relation between the to sites as well as within each site with G729, the call will be established using G729.

However, if there is any device that can only support G711 (generally UCCX and other 3rd party devices controlled by CTI), you would need transcoder to make successfull call to that device.

HTH,

Jagpreet Singh Barmi

2 REPLIES
Cisco Employee

Help DSP resourses same codec

Hi Alan,

Yes, you can force all calls to use G729 from the call manager using region settings.

If you configure the region relation between the to sites as well as within each site with G729, the call will be established using G729.

However, if there is any device that can only support G711 (generally UCCX and other 3rd party devices controlled by CTI), you would need transcoder to make successfull call to that device.

HTH,

Jagpreet Singh Barmi

New Member

Help DSP resourses same codec

thanks, Jagpreet.

Alan.

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