android - Does my asterisk server need the same codecs as my mobile app? -
right now, both android , iphone voip app using g711 codec. asterisk server set allow ulaw codec, understand same g711.
now want start using g729 codec on android , iphone voip app. i've upgraded the sip library on these apps support this.
do need install g729 codec on asterisk server in order android , iphone voip app talk each other?
the short answer no, don't need install g729 codec need enable in sip.conf file allow codec pass-thru.
the long 1 is: depends on requirements. features demand decoding/transcoding work and, in case, need install g729 codec in asterisk, like:
- direct pstn termination (not through sip trunking service);
- direct connected extension (not sip ata/iad)
- voice conferencing
- silence detection
- ...
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