CounterPath Bria 3.5 Administrator Guide - Manual (Page 47)

Bria 3 Administrator Guide
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Supported Codecs
Codec Narrowband Wideband Royalty-bearing
Broadvoice-32 3
Broadvoice-32 FEC 3
G.711aLaw * 3
G.711uLaw * 3
G.722 3
G.729 * 3 3
iLBC 3
OPUS 3
SILK Narrowband 3
SILK Wideband 3
SILK Super-wideband 3
Speex 3
Speex FEC 3
Speex Wideband 3
Speex Wideband FEC 3
* Generally, at least one of these codecs must be enabled in order to place a PSTN (land line) call.