[Users] looping problem
samuel
samu60 at gmail.com
Thu May 4 09:46:10 CEST 2006
What do you have in the alias and in the listen statements??
Sometimes I found similar behaviour and a 483 Too Many Hops at the end
when openSER does not recognize the request (CANCEL) as targeted to
itself. The problem is that 10.200.0.228 does not validates against
the myself statement and the server sends the request to the IP
present in the Req-URI, which happens to be the openSER IP address.
This proceeding is repeated until the Too Many Hops is reached.
There was another issue with CANCEL to INVITE transactions which have
not finished (no reply>199 received) because the CANCEL does not match
the transaction when the caller "hangs up" before the callee "picks up
the phone". I think this is more a openSER internal issue which might
have been solved...apologies if this issue has been closed.
Hope it helps,
Samuel.
2006/5/4, unplug <maillisting at gmail.com>:
> I have experienced a problem (looping problem?) in the system. From
> the log (ngrep) below, the cancel message issues a loop and it will
> affect the performance of the system. User can't dial/receive call
> after the loop happened.
>
> How and why this loop will created? Does it related to the rtpproxy
> that I am using in the system? Any one can give me some hints?
>
> Thanks,
> unplug
>
> Note: 10.200.0.228 is an openser server.
>
> filter: (ip) and ( port 5060 )
> U 10.200.0.228:5060 -> 10.200.0.228:5060
> CANCEL sip:85234163634 at 10.200.0.228 SIP/2.0.
> Record-Route: <sip:10.200.0.228;ftag=ckRP8FNJugUqMOjy;lr=on>.
> Record-Route: <sip:10.200.0.228;ftag=ckRP8FNJugUqMOjy;lr=on>.
> Record-Route: <sip:10.200.0.228;ftag=ckRP8FNJugUqMOjy;lr=on>.
> Record-Route: <sip:10.200.0.228;ftag=ckRP8FNJugUqMOjy;lr=on>.
> Record-Route: <sip:10.200.0.228;ftag=ckRP8FNJugUqMOjy;lr=on>.
> Record-Route: <sip:10.200.0.228;ftag=ckRP8FNJugUqMOjy;lr=on>.
> Record-Route: <sip:10.200.0.228;ftag=ckRP8FNJugUqMOjy;lr=on>.
> Record-Route: <sip:10.200.0.228;ftag=ckRP8FNJugUqMOjy;lr=on>.
> Record-Route: <sip:10.200.0.228;ftag=ckRP8FNJugUqMOjy;lr=on>.
> Record-Route: <sip:10.200.0.228;ftag=ckRP8FNJugUqMOjy;lr=on>.
> Record-Route: <sip:10.200.0.228;ftag=ckRP8FNJugUqMOjy;lr=on>.
> Record-Route: <sip:10.200.0.228;ftag=ckRP8FNJugUqMOjy;lr=on>.
> Record-Route: <sip:10.200.0.228;ftag=ckRP8FNJugUqMOjy;lr=on>.
> Record-Route: <sip:10.200.0.228;ftag=ckRP8FNJugUqMOjy;lr=on>.
> Record-Route: <sip:10.200.0.228;ftag=ckRP8FNJugUqMOjy;lr=on>.
> Via: SIP/2.0/UDP 10.200.0.228;branch=z9hG4bKf34.3ffb2934.0.
> Via: SIP/2.0/UDP 10.200.0.228;branch=z9hG4bKf34.2ffb2934.0.
> Via: SIP/2.0/UDP 10.200.0.228;branch=z9hG4bKf34.1ffb2934.0.
> Via: SIP/2.0/UDP 10.200.0.228;branch=z9hG4bKf34.0ffb2934.0.
> Via: SIP/2.0/UDP 10.200.0.228;branch=z9hG4bKf34.fefb2934.0.
> Via: SIP/2.0/UDP 10.200.0.228;branch=z9hG4bKf34.eefb2934.0.
> Via: SIP/2.0/UDP 10.200.0.228;branch=z9hG4bKf34.defb2934.0.
> Via: SIP/2.0/UDP 10.200.0.228;branch=z9hG4bKf34.cefb2934.0.
> Via: SIP/2.0/UDP 10.200.0.228;branch=z9hG4bKf34.befb2934.0.
> Via: SIP/2.0/UDP 10.200.0.228;branch=z9hG4bKf34.aefb2934.0.
> Via: SIP/2.0/UDP 10.200.0.228;branch=z9hG4bKf34.9efb2934.0.
> Via: SIP/2.0/UDP 10.200.0.228;branch=z9hG4bKf34.8efb2934.0.
> Via: SIP/2.0/UDP 10.200.0.228;branch=z9hG4bKf34.7efb2934.0.
> Via: SIP/2.0/UDP 10.200.0.228;branch=z9hG4bKf34.6efb2934.0.
> Via: SIP/2.0/UDP 10.200.0.228;branch=z9hG4bKf34.4efb2934.0.
> Via: SIP/2.0/UDP 10.0.0.92:5060;branch=z9hG4bKrmPCJR8Xm6JKY4o8.
> Max-Forwards: 55.
> User-Agent: Koncept KE10XX v4.32.14 00-09-45-0a-fc-29.
> From: "871966760539" <sip:871966760539 at 10.200.0.228>;tag=ckRP8FNJugUqMOjy.
> To: "85234163634" <sip:85234163634 at 10.200.0.228>.
> Call-ID: WfigvZ4YJatMKamV at 10.0.0.92.
> Contact: <sip:871966760539 at 10.0.0.92:5060>.
> CSeq: 1 CANCEL.
> Content-Length: 0.
> .
>
> #
> U 10.200.0.228:5060 -> 10.200.0.228:5060
> SIP/2.0 408 Request Timeout.
> Via: SIP/2.0/UDP 10.200.0.228;branch=z9hG4bK5002.201bae66.0.
> Via: SIP/2.0/UDP 10.200.0.228;branch=z9hG4bK5002.101bae66.0.
> Via: SIP/2.0/UDP 10.200.0.228;branch=z9hG4bK5002.001bae66.0.
> Via: SIP/2.0/UDP 10.200.0.228;branch=z9hG4bK5002.ff0bae66.0.
> Via: SIP/2.0/UDP 10.200.0.228;branch=z9hG4bK5002.ef0bae66.0.
> Via: SIP/2.0/UDP 10.200.0.228;branch=z9hG4bK5002.df0bae66.0.
> Via: SIP/2.0/UDP 10.200.0.228;branch=z9hG4bK5002.cf0bae66.0.
> Via: SIP/2.0/UDP 10.200.0.228;branch=z9hG4bK5002.bf0bae66.0.
> Via: SIP/2.0/UDP 10.200.0.228;branch=z9hG4bK5002.af0bae66.0.
> Via: SIP/2.0/UDP 10.200.0.228;branch=z9hG4bK5002.9f0bae66.0.
> Via: SIP/2.0/UDP 10.200.0.228;branch=z9hG4bK5002.8f0bae66.0.
> Via: SIP/2.0/UDP 10.200.0.228;branch=z9hG4bK5002.7f0bae66.0.
> Via: SIP/2.0/UDP 10.200.0.228;branch=z9hG4bK5002.6f0bae66.0.
> Via: SIP/2.0/UDP 10.200.0.228;branch=z9hG4bK5002.5f0bae66.0.
> Via: SIP/2.0/UDP 10.200.0.228;branch=z9hG4bK5002.4f0bae66.0.
> Via: SIP/2.0/UDP 10.0.0.92:5060;branch=z9hG4bKjMEHTGhvWKHZ0R2J.
> From: "871966760539" <sip:871966760539 at 10.200.0.228>;tag=SM4dtzpkDKYyCkzu.
> To: "8521878200"
> <sip:8521878200 at 10.200.0.228>;tag=4cdbaed0e769eb1d9b81f5252847cf64-3d33.
> Call-ID: nQCHB6bq42pOheks at 10.0.0.92.
> CSeq: 1 CANCEL.
> Server: OpenSer (1.0.1 (i386/linux)).
> Content-Length: 0.
> Warning: 392 10.200.0.228:5060 "Noisy feedback tells: pid=3174
> req_src_ip=10.200.0.228 req_src_port=5060
> in_uri=sip:8521878200 at 10.200.0.228 out_uri=sip:8521878200 at 10.200.0.228
> via_cnt==0".
> .
>
> ########
> U 10.200.0.228:5060 -> 10.200.0.228:5060
> SIP/2.0 408 Request Timeout.
> Via: SIP/2.0/UDP 10.200.0.228;branch=z9hG4bK5002.bf0bae66.0.
> Via: SIP/2.0/UDP 10.200.0.228;branch=z9hG4bK5002.af0bae66.0.
> Via: SIP/2.0/UDP 10.200.0.228;branch=z9hG4bK5002.9f0bae66.0.
> Via: SIP/2.0/UDP 10.200.0.228;branch=z9hG4bK5002.8f0bae66.0.
> Via: SIP/2.0/UDP 10.200.0.228;branch=z9hG4bK5002.7f0bae66.0.
> Via: SIP/2.0/UDP 10.200.0.228;branch=z9hG4bK5002.6f0bae66.0.
> Via: SIP/2.0/UDP 10.200.0.228;branch=z9hG4bK5002.5f0bae66.0.
> Via: SIP/2.0/UDP 10.200.0.228;branch=z9hG4bK5002.4f0bae66.0.
> Via: SIP/2.0/UDP 10.0.0.92:5060;branch=z9hG4bKjMEHTGhvWKHZ0R2J.
> From: "871966760539" <sip:871966760539 at 10.200.0.228>;tag=SM4dtzpkDKYyCkzu.
> To: "8521878200"
> <sip:8521878200 at 10.200.0.228>;tag=4cdbaed0e769eb1d9b81f5252847cf64-ab74.
> Call-ID: nQCHB6bq42pOheks at 10.0.0.92.
> CSeq: 1 CANCEL.
> Server: OpenSer (1.0.1 (i386/linux)).
> Content-Length: 0.
> Warning: 392 10.200.0.228:5060 "Noisy feedback tells: pid=3174
> req_src_ip=10.200.0.228 req_src_port=5060
> in_uri=sip:8521878200 at 10.200.0.228 out_uri=sip:8521878200 at 10.200.0.228
> via_cnt==0".
> .
>
> ###########
> U 10.200.0.228:5060 -> 10.200.0.228:5060
> CANCEL sip:85292558811 at 10.200.0.228 SIP/2.0.
> Record-Route: <sip:10.200.0.228;ftag=MySoSexGPE0vUXa5;lr=on>.
> Record-Route: <sip:10.200.0.228;ftag=MySoSexGPE0vUXa5;lr=on>.
> Record-Route: <sip:10.200.0.228;ftag=MySoSexGPE0vUXa5;lr=on>.
> Record-Route: <sip:10.200.0.228;ftag=MySoSexGPE0vUXa5;lr=on>.
> Record-Route: <sip:10.200.0.228;ftag=MySoSexGPE0vUXa5;lr=on>.
> Record-Route: <sip:10.200.0.228;ftag=MySoSexGPE0vUXa5;lr=on>.
> Record-Route: <sip:10.200.0.228;ftag=MySoSexGPE0vUXa5;lr=on>.
> Record-Route: <sip:10.200.0.228;ftag=MySoSexGPE0vUXa5;lr=on>.
> Record-Route: <sip:10.200.0.228;ftag=MySoSexGPE0vUXa5;lr=on>.
> Record-Route: <sip:10.200.0.228;ftag=MySoSexGPE0vUXa5;lr=on>.
> Record-Route: <sip:10.200.0.228;ftag=MySoSexGPE0vUXa5;lr=on>.
> Record-Route: <sip:10.200.0.228;ftag=MySoSexGPE0vUXa5;lr=on>.
> Record-Route: <sip:10.200.0.228;ftag=MySoSexGPE0vUXa5;lr=on>.
> Record-Route: <sip:10.200.0.228;ftag=MySoSexGPE0vUXa5;lr=on>.
> Record-Route: <sip:10.200.0.228;ftag=MySoSexGPE0vUXa5;lr=on>.
> Record-Route: <sip:10.200.0.228;ftag=MySoSexGPE0vUXa5;lr=on>.
> Record-Route: <sip:10.200.0.228;ftag=MySoSexGPE0vUXa5;lr=on>.
> Record-Route: <sip:10.200.0.228;ftag=MySoSexGPE0vUXa5;lr=on>.
> Record-Route: <sip:10.200.0.228;ftag=MySoSexGPE0vUXa5;lr=on>.
> Record-Route: <sip:10.200.0.228;ftag=MySoSexGPE0vUXa5;lr=on>.
> Record-Route: <sip:10.200.0.228;ftag=MySoSexGPE0vUXa5;lr=on>.
> Record-Route: <sip:10.200.0.228;ftag=MySoSexGPE0vUXa5;lr=on>.
> Record-Route: <sip:10.200.0.228;ftag=MySoSexGPE0vUXa5;lr=on>.
> Record-Route: <sip:10.200.0.228;ftag=MySoSexGPE0vUXa5;lr=on>.
> Record-Route: <sip:10.200.0.228;ftag=MySoSexGPE0vUXa5;lr=on>.
> Via: SIP/2.0/UDP 10.200.0.228;branch=z9hG4bKf9f4.edcf03a7.0.
> Via: SIP/2.0/UDP 10.200.0.228;branch=z9hG4bKf9f4.ddcf03a7.0.
> Via: SIP/2.0/UDP 10.200.0.228;branch=z9hG4bKf9f4.cdcf03a7.0.
> Via: SIP/2.0/UDP 10.200.0.228;branch=z9hG4bKf9f4.bdcf03a7.0.
> Via: SIP/2.0/UDP 10.200.0.228;branch=z9hG4bKf9f4.adcf03a7.0.
> Via: SIP/2.0/UDP 10.200.0.228;branch=z9hG4bKf9f4.9dcf03a7.0.
> Via: SIP/2.0/UDP 10.200.0.228;branch=z9hG4bKf9f4.8dcf03a7.0.
> Via: SIP/2.0/UDP 10.200.0.228;branch=z9hG4bKf9f4.7dcf03a7.0.
> Via: SIP/2.0/UDP 10.200.0.228;branch=z9hG4bKf9f4.6dcf03a7.0.
> Via: SIP/2.0/UDP 10.200.0.228;branch=z9hG4bKf9f4.5dcf03a7.0.
> Via: SIP/2.0/UDP 10.200.0.228;branch=z9hG4bKf9f4.4dcf03a7.0.
> Via: SIP/2.0/UDP 10.200.0.228;branch=z9hG4bKf9f4.3dcf03a7.0.
> Via: SIP/2.0/UDP 10.200.0.228;branch=z9hG4bKf9f4.2dcf03a7.0.
> Via: SIP/2.0/UDP 10.200.0.228;branch=z9hG4bKf9f4.1dcf03a7.0.
> Via: SIP/2.0/UDP 10.200.0.228;branch=z9hG4bKf9f4.0dcf03a7.0.
> Via: SIP/2.0/UDP 10.200.0.228;branch=z9hG4bKf9f4.fccf03a7.0.
> Via: SIP/2.0/UDP 10.200.0.228;branch=z9hG4bKf9f4.eccf03a7.0.
> Via: SIP/2.0/UDP 10.200.0.228;branch=z9hG4bKf9f4.dccf03a7.0.
> Via: SIP/2.0/UDP 10.200.0.228;branch=z9hG4bKf9f4.cccf03a7.0.
> Via: SIP/2.0/UDP 10.200.0.228;branch=z9hG4bKf9f4.bccf03a7.0.
> Via: SIP/2.0/UDP 10.200.0.228;branch=z9hG4bKf9f4.accf03a7.0.
> Via: SIP/2.0/UDP 10.200.0.228;branch=z9hG4bKf9f4.9ccf03a7.0.
> Via: SIP/2.0/UDP 10.200.0.228;branch=z9hG4bKf9f4.8ccf03a7.0.
> Via: SIP/2.0/UDP 10.200.0.228;branch=z9hG4bKf9f4.7ccf03a7.0.
> Via: SIP/2.0/UDP 10.200.0.228;branch=z9hG4bKf9f4.6ccf03a7.0.
> Via: SIP/2.0/UDP 10.0.0.92:5060;branch=z9hG4bKlpjLoMyFjsI1BvQL.
> Max-Forwards: 45.
> User-Agent: Koncept KE10XX v4.32.14 00-09-45-0a-fc-29.
> From: "871966760539" <sip:871966760539 at 10.200.0.228>;tag=MySoSexGPE0vUXa5.
> To: "85292558811" <sip:85292558811 at 10.200.0.228>.
> Call-ID: 8p3FIbMUfYMXOuW3 at 10.0.0.92.
> Contact: <sip:871966760539 at 10.0.0.92:5060>.
> CSeq: 1 CANCEL.
> Content-Length: 0.
> .
>
> ###
> U 10.200.0.228:5060 -> 10.200.0.228:5060
> CANCEL sip:85234163634 at 10.200.0.228 SIP/2.0.
> Record-Route: <sip:10.200.0.228;ftag=ckRP8FNJugUqMOjy;lr=on>.
> Record-Route: <sip:10.200.0.228;ftag=ckRP8FNJugUqMOjy;lr=on>.
> Record-Route: <sip:10.200.0.228;ftag=ckRP8FNJugUqMOjy;lr=on>.
> Record-Route: <sip:10.200.0.228;ftag=ckRP8FNJugUqMOjy;lr=on>.
> Record-Route: <sip:10.200.0.228;ftag=ckRP8FNJugUqMOjy;lr=on>.
> Record-Route: <sip:10.200.0.228;ftag=ckRP8FNJugUqMOjy;lr=on>.
> Record-Route: <sip:10.200.0.228;ftag=ckRP8FNJugUqMOjy;lr=on>.
> Record-Route: <sip:10.200.0.228;ftag=ckRP8FNJugUqMOjy;lr=on>.
> Record-Route: <sip:10.200.0.228;ftag=ckRP8FNJugUqMOjy;lr=on>.
> Record-Route: <sip:10.200.0.228;ftag=ckRP8FNJugUqMOjy;lr=on>.
> Record-Route: <sip:10.200.0.228;ftag=ckRP8FNJugUqMOjy;lr=on>.
> Record-Route: <sip:10.200.0.228;ftag=ckRP8FNJugUqMOjy;lr=on>.
> Record-Route: <sip:10.200.0.228;ftag=ckRP8FNJugUqMOjy;lr=on>.
> Record-Route: <sip:10.200.0.228;ftag=ckRP8FNJugUqMOjy;lr=on>.
> Record-Route: <sip:10.200.0.228;ftag=ckRP8FNJugUqMOjy;lr=on>.
> Via: SIP/2.0/UDP 10.200.0.228;branch=z9hG4bKf34.3ffb2934.0.
> Via: SIP/2.0/UDP 10.200.0.228;branch=z9hG4bKf34.2ffb2934.0.
> Via: SIP/2.0/UDP 10.200.0.228;branch=z9hG4bKf34.1ffb2934.0.
> Via: SIP/2.0/UDP 10.200.0.228;branch=z9hG4bKf34.0ffb2934.0.
> Via: SIP/2.0/UDP 10.200.0.228;branch=z9hG4bKf34.fefb2934.0.
> Via: SIP/2.0/UDP 10.200.0.228;branch=z9hG4bKf34.eefb2934.0.
> Via: SIP/2.0/UDP 10.200.0.228;branch=z9hG4bKf34.defb2934.0.
> Via: SIP/2.0/UDP 10.200.0.228;branch=z9hG4bKf34.cefb2934.0.
> Via: SIP/2.0/UDP 10.200.0.228;branch=z9hG4bKf34.befb2934.0.
> Via: SIP/2.0/UDP 10.200.0.228;branch=z9hG4bKf34.aefb2934.0.
> Via: SIP/2.0/UDP 10.200.0.228;branch=z9hG4bKf34.9efb2934.0.
> Via: SIP/2.0/UDP 10.200.0.228;branch=z9hG4bKf34.8efb2934.0.
> Via: SIP/2.0/UDP 10.200.0.228;branch=z9hG4bKf34.7efb2934.0.
> Via: SIP/2.0/UDP 10.200.0.228;branch=z9hG4bKf34.6efb2934.0.
> Via: SIP/2.0/UDP 10.200.0.228;branch=z9hG4bKf34.4efb2934.0.
> Via: SIP/2.0/UDP 10.0.0.92:5060;branch=z9hG4bKrmPCJR8Xm6JKY4o8.
> Max-Forwards: 55.
> User-Agent: Koncept KE10XX v4.32.14 00-09-45-0a-fc-29.
> From: "871966760539" <sip:871966760539 at 10.200.0.228>;tag=ckRP8FNJugUqMOjy.
> To: "85234163634" <sip:85234163634 at 10.200.0.228>.
> Call-ID: WfigvZ4YJatMKamV at 10.0.0.92.
> Contact: <sip:871966760539 at 10.0.0.92:5060>.
> CSeq: 1 CANCEL.
> Content-Length: 0.
> .
>
> ########
> U 10.200.0.228:5060 -> 10.200.0.228:5060
> CANCEL sip:85292558811 at 10.200.0.228 SIP/2.0.
> Record-Route: <sip:10.200.0.228;ftag=MySoSexGPE0vUXa5;lr=on>.
> Record-Route: <sip:10.200.0.228;ftag=MySoSexGPE0vUXa5;lr=on>.
> Record-Route: <sip:10.200.0.228;ftag=MySoSexGPE0vUXa5;lr=on>.
> Record-Route: <sip:10.200.0.228;ftag=MySoSexGPE0vUXa5;lr=on>.
> Record-Route: <sip:10.200.0.228;ftag=MySoSexGPE0vUXa5;lr=on>.
> Record-Route: <sip:10.200.0.228;ftag=MySoSexGPE0vUXa5;lr=on>.
> Record-Route: <sip:10.200.0.228;ftag=MySoSexGPE0vUXa5;lr=on>.
> Record-Route: <sip:10.200.0.228;ftag=MySoSexGPE0vUXa5;lr=on>.
> Record-Route: <sip:10.200.0.228;ftag=MySoSexGPE0vUXa5;lr=on>.
> Record-Route: <sip:10.200.0.228;ftag=MySoSexGPE0vUXa5;lr=on>.
> Record-Route: <sip:10.200.0.228;ftag=MySoSexGPE0vUXa5;lr=on>.
> Record-Route: <sip:10.200.0.228;ftag=MySoSexGPE0vUXa5;lr=on>.
> Record-Route: <sip:10.200.0.228;ftag=MySoSexGPE0vUXa5;lr=on>.
> Record-Route: <sip:10.200.0.228;ftag=MySoSexGPE0vUXa5;lr=on>.
> Record-Route: <sip:10.200.0.228;ftag=MySoSexGPE0vUXa5;lr=on>.
> Record-Route: <sip:10.200.0.228;ftag=MySoSexGPE0vUXa5;lr=on>.
> Record-Route: <sip:10.200.0.228;ftag=MySoSexGPE0vUXa5;lr=on>.
> Record-Route: <sip:10.200.0.228;ftag=MySoSexGPE0vUXa5;lr=on>.
> Record-Route: <sip:10.200.0.228;ftag=MySoSexGPE0vUXa5;lr=on>.
> Record-Route: <sip:10.200.0.228;ftag=MySoSexGPE0vUXa5;lr=on>.
> Record-Route: <sip:10.200.0.228;ftag=MySoSexGPE0vUXa5;lr=on>.
> Record-Route: <sip:10.200.0.228;ftag=MySoSexGPE0vUXa5;lr=on>.
> Record-Route: <sip:10.200.0.228;ftag=MySoSexGPE0vUXa5;lr=on>.
> Via: SIP/2.0/UDP 10.200.0.228;branch=z9hG4bKf9f4.cdcf03a7.0.
> Via: SIP/2.0/UDP 10.200.0.228;branch=z9hG4bKf9f4.bdcf03a7.0.
> Via: SIP/2.0/UDP 10.200.0.228;branch=z9hG4bKf9f4.adcf03a7.0.
> Via: SIP/2.0/UDP 10.200.0.228;branch=z9hG4bKf9f4.9dcf03a7.0.
> Via: SIP/2.0/UDP 10.200.0.228;branch=z9hG4bKf9f4.8dcf03a7.0.
> Via: SIP/2.0/UDP 10.200.0.228;branch=z9hG4bKf9f4.7dcf03a7.0.
> Via: SIP/2.0/UDP 10.200.0.228;branch=z9hG4bKf9f4.6dcf03a7.0.
> Via: SIP/2.0/UDP 10.200.0.228;branch=z9hG4bKf9f4.5dcf03a7.0.
> Via: SIP/2.0/UDP 10.200.0.228;branch=z9hG4bKf9f4.4dcf03a7.0.
> Via: SIP/2.0/UDP 10.200.0.228;branch=z9hG4bKf9f4.3dcf03a7.0.
> Via: SIP/2.0/UDP 10.200.0.228;branch=z9hG4bKf9f4.2dcf03a7.0.
> Via: SIP/2.0/UDP 10.200.0.228;branch=z9hG4bKf9f4.1dcf03a7.0.
> Via: SIP/2.0/UDP 10.200.0.228;branch=z9hG4bKf9f4.0dcf03a7.0.
> Via: SIP/2.0/UDP 10.200.0.228;branch=z9hG4bKf9f4.fccf03a7.0.
> Via: SIP/2.0/UDP 10.200.0.228;branch=z9hG4bKf9f4.eccf03a7.0.
> Via: SIP/2.0/UDP 10.200.0.228;branch=z9hG4bKf9f4.dccf03a7.0.
> Via: SIP/2.0/UDP 10.200.0.228;branch=z9hG4bKf9f4.cccf03a7.0.
> Via: SIP/2.0/UDP 10.200.0.228;branch=z9hG4bKf9f4.bccf03a7.0.
> Via: SIP/2.0/UDP 10.200.0.228;branch=z9hG4bKf9f4.accf03a7.0.
> Via: SIP/2.0/UDP 10.200.0.228;branch=z9hG4bKf9f4.9ccf03a7.0.
> Via: SIP/2.0/UDP 10.200.0.228;branch=z9hG4bKf9f4.8ccf03a7.0.
> Via: SIP/2.0/UDP 10.200.0.228;branch=z9hG4bKf9f4.7ccf03a7.0.
> Via: SIP/2.0/UDP 10.200.0.228;branch=z9hG4bKf9f4.6ccf03a7.0.
> Via: SIP/2.0/UDP 10.0.0.92:5060;branch=z9hG4bKlpjLoMyFjsI1BvQL.
> Max-Forwards: 47.
> User-Agent: Koncept KE10XX v4.32.14 00-09-45-0a-fc-29.
> From: "871966760539" <sip:871966760539 at 10.200.0.228>;tag=MySoSexGPE0vUXa5.
> To: "85292558811" <sip:85292558811 at 10.200.0.228>.
> Call-ID: 8p3FIbMUfYMXOuW3 at 10.0.0.92.
> Contact: <sip:871966760539 at 10.0.0.92:5060>.
> CSeq: 1 CANCEL.
> Content-Length: 0.
> .
>
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