Forcing Audio Codec

[Hortoristic]

Is there any way to force what audio codec(s) to use?

Below is what CC audio codec used during a call:
tx=G711U; rx=G711U (bridged)

I think I heard if when using a mobile device, the best codec to use was G729

[Azouz]

Log in to OBI Talk Expert configuration, look for Codecs==> Codec Profile B===> Enable only the codec you want to use. Save. Then go to SPx you want to configure, look for X_CodecProfile and choose Profile B.

[Shale]

You can use star codes for two of the codecs:
*4711, Use G711 Only on the next outbound call
*4729, Use G729 Only on the next outbound call