Remote Phones Codec

[Dmitry Golovenkin]

We have recently moved our phone system to our data center as most of our staff work from home. We've then set up a site-to-site VPN to one of our offices on Cisco ASA5505s which works okay but every know and then we get issues with the voice quality.

Is there a way to set so the remote phones use G729 codec rather than G711? 

We are running on CUCM 9.1, if that makes any difference. 

Thank you

[Kirill Glushenkov]

If everything works as u need, then you don't need to change.

Please, mark answer as correct for other people not to waiste time on looking at this question.

Regards,

Kirill

[heathrw]

Hi,

Yes you can try this need to remember if the site to site VPN is over the internet there is no QoS so this will lower the bandwidth requirements but may not help 100%.  

Setup a new region (set codec here), location (set maximum site bandwidth here). Create a new device pool (assign the new region and location also). Assign the newly created device pool to the device(s) on the other side of your VPN link then restart.

If may need transcoding if there are resources that don't support dual codecs.

Good luck.