Hello, I’m having this issue on my pbx, it appears that asterisk is refusing the codecs that my providers is proposing. My trunk configuration is:
Pretty simple –
Here you’re disallowing all codecs except alaw.
But….provider will only send GSM or G729.
So either you need to talk your provider into sending alaw or you need change your allow line to “allow=alaw,gsm”.
Il 15/01/2014 10.09, James Sharp ha scritto:
Hello James, thanks for your answer, I supposed this too, but my provider answered me that as m=audio 43718 RTP/AVP 8 18 3 101
^ ^ ^—- GSM proposal
^ ^——- G729 proposal
^———- aLaw proposal
And that a=rtpmap:18 G729/8000 proposed as media conversion a=rtpmap:3 GSM/8000/1 because the call is made by a mobile
Il 15/01/2014 09.59, Francesco Namuri ha scritto:
Found the problem, but I’m wondering how it’s possible… I’ve a wrong configuration in a trunk: