Available values
- all
- g723 – G.723.1
- gsm – GSM
- ulaw – u-Law
- alaw – a-Law
- g726 – G.726-32
- adpcm – ADPCM
- slin – SLIN
- g729 – G.729
- speex – Speex
- ilbc – iLBC
See also
- Asterisk codecs
- Variable SIP_CODEC: Set the SIP codec for the inbound (=first) call leg (see channelvariables.txt or README.variables in 1.2); Asterisk 1.6.2 also comes with SIP_CODEC_OUTBOUND for the remote (=second) call leg.