Doubt about what codec use to Wireless IP Voice

[wilsonsant]

Hi Guys,

My Customer have a CallManager version 8.5 and any Mobil Phones 7921 and 7925. My question is: is there the codec recommendated to this topology. My Customer would like test only G711, but, there is not this option in CallManager. The optin that is G.722,G.729.

Thanks,

Wilson

[migilles]

Sure G.711 is an option. 

But you would have to disable the G.722 advertisement.

This can be done on a global basis in enterprise parameters or on a per phone basis.

In the phone config, there is a "Advertise G.722 Codec" option.  Set that to disabled to use G.711 instead of G.722 assuming the region is setup correctly.

G.722/G.711 (64 Kbps audio) are the same option in the region config.

See the 792xG Deployment Guides for more info on the G.722 advertisement option.

7921  http://www.cisco.com/en/US/docs/voice_ip_comm/cuipph/7921g/6_0/english/deployment/guide/7921dply.pdf

7925  http://www.cisco.com/en/US/docs/voice_ip_comm/cuipph/7925g/7_0/english/deployment/guide/7925dply.pdf

[wilsonsant]

Hi Migilles,

Thanks for answer. About the WLC ou WCS, is there any specific configuration to work with the mobil Phone? or what is the best practice about this?

Thanks,

Wilson

[migilles · Accepted solution]

The recommended WLC version as well as supported AP platforms are also in the deployment guide mentioned above.

Currently recommend 7.0.116.0.