Sounds like you need to setup outbound caller ID, do you have a full sip trace? On Mon, Aug 8, 2022 at 9:22 PM Brian May <brian@linuxpenguins.xyz> wrote:
OK, so some facts:
* Similar problems for 2 providers. * If incoming call is bridged, it fails. * If incoming call is redirected to 9196 echo test it works. * The call to 9196 is answered immediately. But the time take to answer the call does not appear to be significant.
I created tcpdumps of both cases.
* In both cases, simple INVITE, TRYING, OK, ACK sequence. * In the good case, the provider starts sending data immediately after the ACK.
My reasoning is:
* The server must be doing something different in order for the behaviour to change of the packets it is sending.
* This means the server must know which case is being tested.
* This follows that we must be communicating something different to the server, depending on which case is being tested.
I have opened two instances of wireshark, and comparing the two traces, I see only insignificant differences:
* port numbers are different.
* In the not-working case we send a Session Progress message while the phone is ringing, I think this is just a consequence of taking more time to answer the call.
* In the working case, in the OK message freeswitch sends a "Accept: application/sdp" header. In the non-working case we omit the header. I find it hard to believe this could be of any consequence.
All other details, codecs, IP address details, etc are identical.
Oh, almost missed a difference; we send to the provider in the OK message (bad vs good calls):
-P-Asserted-Identity: "Outbound Call" <sip:1005@sip.crazytel.net.au> +P-Asserted-Identity: "61390369013" <sip:61390369013@sip.crazytel.net.au>
What is this header? Could the fact I am sending the wrong value be significant? My provider doesn't know anything about my 1005 extension.
I am somewhat doubtful actually.
-- Brian May <brian@linuxpenguins.xyz> https://linuxpenguins.xyz/brian/
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