Hi, Until now my ser was working fine with pstn gateway and everything. Then I added session timer code, then removed it. After that calls to pstn are getting a BAD REQUEST by the gateway, as per the following ngrep output.
But from X-Ten phone, the calls are fine.
-- # U x.x.x.112:5060 -> x.x.x.100:5060 INVITE sip:011919899518291@x.x.x.100 SIP/2.0. Record-Route: sip:x.x.x.112;ftag=6666f47f;lr=on. Via: SIP/2.0/UDP x.x.x.112;branch=z9hG4bKe7d7.61cc1fd5.0. Via: SIP/2.0/UDP 127.0.0.1:5062;received=61.16.236.34;branch=z9hG4bKnp1718443690-48380229127. 0.0.1;rport=23943. From: "ashu" sip:satya@x.x.x.112;tag=6666f47f. To: sip:011919899518291@x.x.x.112. Call-ID: 1718023321-4700bac4@127.0.0.1. CSeq: 1 INVITE. User-Agent: Nero SIPPS IP Phone Version 2.0.51.16. Expires: 120. Accept: application/sdp. Content-Type: application/sdp. Content-Length: 271. Contact: sip:satya@a.b.c.d:23943. Max-Forwards: 16. Allow: INVITE, ACK, CANCEL, BYE, REFER, OPTIONS, NOTIFY, INFO. . v=0. o=SIPPS 1718024970 1718024973 IN IP4 0.0.0.0. s=SIP call NPC0. c=IN IP4 0.0.0.0. t=0 0. m=audio 30000 RTP/AVP 0 8 97 2 3. a=rtpmap:0 pcmu/8000. a=rtpmap:8 pcma/8000. a=rtpmap:97 iLBC/8000. a=rtpmap:2 G726-32/8000. a=rtpmap:3 GSM/8000. a=fmtp:97 mode=20. a=sendrecv.
# U x.x.x.100:5060 -> x.x.x.112:5060 SIP/2.0 100 Trying. Via: SIP/2.0/UDP x.x.x.112;branch=z9hG4bKe7d7.61cc1fd5.0. Via: SIP/2.0/UDP 127.0.0.1:5062;received=61.16.236.34;branch=z9hG4bKnp1718443690-48380229127. 0.0.1;rport=23943. From: "ashu" sip:satya@x.x.x.112;tag=6666f47f. To: sip:011919899518291@x.x.x.112. Call-ID: 1718023321-4700bac4@127.0.0.1. CSeq: 1 INVITE. Content-Length: 0. .
# U x.x.x.100:5060 -> x.x.x.112:5060 SIP/2.0 400 Bad Request. To: sip:011919899518291@x.x.x.112;tag=3335618647-158732. From: "ashu" sip:satya@x.x.x.112;tag=6666f47f. Call-ID: 1718023321-4700bac4@127.0.0.1. CSeq: 1 INVITE. Contact: sip:011919899518291@x.x.x.100:5060. Via: SIP/2.0/UDP x.x.x.112;branch=z9hG4bKe7d7.61cc1fd5.0. Via: SIP/2.0/UDP 127.0.0.1:5062;received=61.16.236.34;branch=z9hG4bKnp1718443690-48380229127. 0.0.1;rport=23943. Content-Length: 0.
Regards, Ashutosh Kumar Chetu, Inc.