Hello,
On 07/01/06 23:38, Kelvin Williams wrote:
I am encountering a problem when creating an outbound call using our PSTN Provider.
I make the call, the phone rings (PSTN) and I can hear the other party answer. They however, cannot hear me, and shortly thereafter the call drops. I ngrep’d the call and found that they are sending me 200 OK’s after the call is set up, and OpenSER appears to relay those back to my EMTA. However, I never see the ACK return from my EMTA. What could cause this problem?
your phone must send an ACK afte rreceiving the 200OK, otherwise the callee will tear down the call after aprox. 20sec. No audio problem could be if you are behind a NAT and you haven't configured the sip server to do the NAT traversal (via nathelper+rtpproxy or mediaproxy+python mediaproxy).
Cheers, Daniel
Inbound calls are not a problem.
Thanks,
Kw
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