[Freeswitch-users] codec negotiation error

Brian May brian at linuxpenguins.xyz
Wed Aug 3 03:00:43 UTC 2022


I receiving an incoming call, with the G.729 PCMA codec. I try to bridge
this call to my VOIP provider. This generates the following SDP packet:

=== cut ===
o=FreeSWITCH 175841631 175841632 IN IP4
c=IN IP4
t=0 0
m=audio 29188 RTP/AVP 0 101 8 3
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-16
=== cut ===

I think this is bad, as PCMA isn't listed in the codecs available.

How do I debug this?

I am assuming this might be the reason why I am not getting incoming
audio (does this make sense?)

Brian May <brian at linuxpenguins.xyz>

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