root@comcerto:/# tcpdump -i any port 5060 -v
tcpdump: listening on any, link-type LINUX_SLL (Linux cooked v1), capture size 262144 bytes
05:50:19.801774 IP (tos 0x68, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 1016)
    localhost..6060 > localhost..5060: SIP, length: 988
        INVITE sip:22@192.168.20.120 SIP/2.0
        Via: SIP/2.0/UDP 127.0.0.1:6060;rport;branch=z9hG4bK1446390524
        From: <sip:11@192.168.20.120>;tag=1378558120
        To: <sip:22@192.168.20.120>
        Call-ID: 555660805
        CSeq: 20 INVITE
        Contact: <sip:11@127.0.0.1:6060>
        Content-Type: application/sdp
        Allow: INVITE,ACK,BYE,CANCEL,OPTIONS,REFER,NOTIFY,INFO,UPDATE,PRACK,SUBSCRIBE
        Max-Forwards: 70
        User-Agent: eXosip/5.3.0
        X-Endpoint-Type: FS01
        Allow-Events: conference
        Supported: replaces,timer,100rel
        Content-Length:   478

        v=0
        o=gateway 0 3 IN IP4 192.168.20.120
        s=conversation
        c=IN IP4 192.168.20.120
        t=0 0
        m=audio 10508 RTP/AVP 8 0 4 9 18 100 96 99 97 101 13 98
        a=rtpmap:8 PCMA/8000
        a=rtpmap:0 PCMU/8000
        a=rtpmap:4 G723/8000
        a=rtpmap:9 G722/8000
        a=rtpmap:18 G729/8000
        a=rtpmap:100 G726-40/8000
        a=rtpmap:96 G726-32/8000
        a=rtpmap:99 G726-24/8000
        a=rtpmap:97 G726-16/8000
        a=rtpmap:101 telephone-event/8000
        a=fmtp:101 0-15
        a=rtpmap:13 CN/8000
        a=rtpmap:98 PCMA/8000
        a=gpmd:98 vbd=yes
05:50:19.827108 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 1210)
    localhost..5060 > localhost..6060: SIP, length: 1182
        INVITE sip:22@127.0.0.1:6060;transport=udp SIP/2.0
        Via: SIP/2.0/UDP 127.0.0.1:5060;branch=z9hG4bK-524287-1---07c05e4397fdac05;rport
        Via: SIP/2.0/UDP 127.0.0.1:6060;rport=6060;branch=z9hG4bK1446390524
        Max-Forwards: 69
        Record-Route: <sip:192.168.20.120:5060;transport=udp;lr>
        Contact: <sip:11@127.0.0.1:6060>
        To: <sip:22@192.168.20.120>
        From: <sip:11@192.168.20.120>;tag=1378558120
        Call-ID: 555660805
        CSeq: 20 INVITE
        Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, REFER, NOTIFY, INFO, UPDATE, PRACK, SUBSCRIBE
        Content-Type: application/sdp
        Supported: replaces, timer, 100rel
        User-Agent: eXosip/5.3.0
        Allow-Events: conference
        X-Endpoint-Type: FS01
        X-Secure-Transport: yes
        Content-Length: 478

        v=0
        o=gateway 0 3 IN IP4 192.168.20.120
        s=conversation
        c=IN IP4 192.168.20.120
        t=0 0
        m=audio 10508 RTP/AVP 8 0 4 9 18 100 96 99 97 101 13 98
        a=rtpmap:8 PCMA/8000
        a=rtpmap:0 PCMU/8000
        a=rtpmap:4 G723/8000
        a=rtpmap:9 G722/8000
        a=rtpmap:18 G729/8000
        a=rtpmap:100 G726-40/8000
        a=rtpmap:96 G726-32/8000
        a=rtpmap:99 G726-24/8000
        a=rtpmap:97 G726-16/8000
        a=rtpmap:101 telephone-event/8000
        a=fmtp:101 0-15
        a=rtpmap:13 CN/8000
        a=rtpmap:98 PCMA/8000
        a=gpmd:98 vbd=yes
05:50:19.834895 IP (tos 0x68, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 363)
    localhost..6060 > localhost..5060: SIP, length: 335
        SIP/2.0 100 Trying
        Via: SIP/2.0/UDP 127.0.0.1:5060;branch=z9hG4bK-524287-1---07c05e4397fdac05;rport=5060
        Via: SIP/2.0/UDP 127.0.0.1:6060;rport=6060;branch=z9hG4bK1446390524
        From: <sip:11@192.168.20.120>;tag=1378558120
        To: <sip:22@192.168.20.120>
        Call-ID: 555660805
        CSeq: 20 INVITE
        User-Agent: eXosip/5.3.0
        Content-Length: 0

05:50:19.876941 IP (tos 0x68, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 683)
    localhost..6060 > localhost..5060: SIP, length: 655
        SIP/2.0 180 Ringing
        Via: SIP/2.0/UDP 127.0.0.1:5060;branch=z9hG4bK-524287-1---07c05e4397fdac05;rport=5060
        Via: SIP/2.0/UDP 127.0.0.1:6060;rport=6060;branch=z9hG4bK1446390524
        Record-Route: <sip:192.168.20.120:5060;transport=udp;lr>
        From: <sip:11@192.168.20.120>;tag=1378558120
        To: <sip:22@192.168.20.120>;tag=579980422
        Call-ID: 555660805
        CSeq: 20 INVITE
        Contact: <sip:22@127.0.0.1:6060>
        Allow: INVITE,ACK,BYE,CANCEL,OPTIONS,REFER,NOTIFY,INFO,UPDATE,PRACK,SUBSCRIBE
        User-Agent: eXosip/5.3.0
        Allow-Events: conference
        Supported: replaces,timer,100rel
        P-Asserted-Identity: <sip:22@192.168.20.120>
        Require: 100rel
        RSeq: 100
        Content-Length: 0

05:50:19.892105 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 608)
    localhost..5060 > localhost..6060: SIP, length: 580
        SIP/2.0 180 Ringing
        Via: SIP/2.0/UDP 127.0.0.1:6060;rport=6060;branch=z9hG4bK1446390524
        Record-Route: <sip:192.168.20.120:5060;transport=udp;lr>
        Require: 100rel
        Contact: <sip:22@127.0.0.1:6060>
        To: <sip:22@192.168.20.120>;tag=579980422
        From: <sip:11@192.168.20.120>;tag=1378558120
        Call-ID: 555660805
        CSeq: 20 INVITE
        Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, REFER, NOTIFY, INFO, UPDATE, PRACK, SUBSCRIBE
        Supported: replaces, timer, 100rel
        User-Agent: eXosip/5.3.0
        Allow-Events: conference
        RSeq: 100
        P-Asserted-Identity: <sip:22@192.168.20.120>
        Content-Length: 0

05:50:19.903378 IP (tos 0x68, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 425)
    localhost..6060 > localhost..5060: SIP, length: 397
        PRACK sip:22@127.0.0.1:6060 SIP/2.0
        Via: SIP/2.0/UDP 127.0.0.1:6060;rport;branch=z9hG4bK1897208255
        Route: <sip:192.168.20.120:5060;transport=udp;lr>
        From: <sip:11@192.168.20.120>;tag=1378558120
        To: <sip:22@192.168.20.120>;tag=579980422
        Call-ID: 555660805
        CSeq: 21 PRACK
        Contact: <sip:11@127.0.0.1:6060>
        Max-Forwards: 70
        User-Agent: eXosip/5.3.0
        RAck: 100 20 INVITE
        Content-Length: 0

05:50:19.917515 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 461)
    localhost..5060 > localhost..6060: SIP, length: 433
        PRACK sip:22@127.0.0.1:6060 SIP/2.0
        Via: SIP/2.0/UDP 127.0.0.1:5060;branch=z9hG4bK-524287-1---2bb81a116475ee70;rport
        Via: SIP/2.0/UDP 127.0.0.1:6060;rport=6060;branch=z9hG4bK1897208255
        Max-Forwards: 69
        Contact: <sip:11@127.0.0.1:6060>
        To: <sip:22@192.168.20.120>;tag=579980422
        From: <sip:11@192.168.20.120>;tag=1378558120
        Call-ID: 555660805
        CSeq: 21 PRACK
        User-Agent: eXosip/5.3.0
        RAck: 100 20 INVITE
        Content-Length: 0

05:50:19.930337 IP (tos 0x68, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 614)
    localhost..6060 > localhost..5060: SIP, length: 586
        SIP/2.0 200 OK
        Via: SIP/2.0/UDP 127.0.0.1:5060;branch=z9hG4bK-524287-1---2bb81a116475ee70;rport=5060
        Via: SIP/2.0/UDP 127.0.0.1:6060;rport=6060;branch=z9hG4bK1897208255
        From: <sip:11@192.168.20.120>;tag=1378558120
        To: <sip:22@192.168.20.120>;tag=579980422
        Call-ID: 555660805
        CSeq: 21 PRACK
        Contact: <sip:22@127.0.0.1:6060>
        Allow: INVITE,ACK,BYE,CANCEL,OPTIONS,REFER,NOTIFY,INFO,UPDATE,PRACK,SUBSCRIBE
        User-Agent: eXosip/5.3.0
        Allow-Events: conference
        Supported: replaces,timer,100rel
        X-Endpoint-Type: FS01
        P-Asserted-Identity: <sip:22@192.168.20.120>
        Content-Length: 0

05:50:19.937095 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 539)
    localhost..5060 > localhost..6060: SIP, length: 511
        SIP/2.0 200 OK
        Via: SIP/2.0/UDP 127.0.0.1:6060;rport=6060;branch=z9hG4bK1897208255
        Contact: <sip:22@127.0.0.1:6060>
        To: <sip:22@192.168.20.120>;tag=579980422
        From: <sip:11@192.168.20.120>;tag=1378558120
        Call-ID: 555660805
        CSeq: 21 PRACK
        Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, REFER, NOTIFY, INFO, UPDATE, PRACK, SUBSCRIBE
        Supported: replaces, timer, 100rel
        User-Agent: eXosip/5.3.0
        Allow-Events: conference
        P-Asserted-Identity: <sip:22@192.168.20.120>
        X-Endpoint-Type: FS01
        Content-Length: 0

05:50:24.972375 IP (tos 0x68, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 982)
    localhost..6060 > localhost..5060: SIP, length: 954
        SIP/2.0 200 OK
        Via: SIP/2.0/UDP 127.0.0.1:5060;branch=z9hG4bK-524287-1---07c05e4397fdac05;rport=5060
        Via: SIP/2.0/UDP 127.0.0.1:6060;rport=6060;branch=z9hG4bK1446390524
        Record-Route: <sip:192.168.20.120:5060;transport=udp;lr>
        From: <sip:11@192.168.20.120>;tag=1378558120
        To: <sip:22@192.168.20.120>;tag=579980422
        Call-ID: 555660805
        CSeq: 20 INVITE
        Contact: <sip:22@127.0.0.1:6060>
        Content-Type: application/sdp
        Allow: INVITE,ACK,BYE,CANCEL,OPTIONS,REFER,NOTIFY,INFO,UPDATE,PRACK,SUBSCRIBE
        User-Agent: eXosip/5.3.0
        Allow-Events: conference
        Supported: replaces,timer,100rel
        X-Endpoint-Type: FS01
        P-Asserted-Identity: <sip:22@192.168.20.120>
        Content-Length:   274

        v=0
        o=gateway 0 0 IN IP4 192.168.20.120
        s=conversation
        c=IN IP4 192.168.20.120
        t=0 0
        m=audio 10510 RTP/AVP 8 101 13 98
        a=rtpmap:8 PCMA/8000
        a=rtpmap:101 telephone-event/8000
        a=fmtp:101 0-15
        a=rtpmap:13 CN/8000
        a=rtpmap:98 PCMA/8000
        a=gpmd:98 vbd=yes
        a=sendrecv
05:50:25.003157 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 905)
    localhost..5060 > localhost..6060: SIP, length: 877
        SIP/2.0 200 OK
        Via: SIP/2.0/UDP 127.0.0.1:6060;rport=6060;branch=z9hG4bK1446390524
        Record-Route: <sip:192.168.20.120:5060;transport=udp;lr>
        Contact: <sip:22@127.0.0.1:6060>
        To: <sip:22@192.168.20.120>;tag=579980422
        From: <sip:11@192.168.20.120>;tag=1378558120
        Call-ID: 555660805
        CSeq: 20 INVITE
        Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, REFER, NOTIFY, INFO, UPDATE, PRACK, SUBSCRIBE
        Content-Type: application/sdp
        Supported: replaces, timer, 100rel
        User-Agent: eXosip/5.3.0
        Allow-Events: conference
        P-Asserted-Identity: <sip:22@192.168.20.120>
        X-Endpoint-Type: FS01
        Content-Length: 274

        v=0
        o=gateway 0 0 IN IP4 192.168.20.120
        s=conversation
        c=IN IP4 192.168.20.120
        t=0 0
        m=audio 10510 RTP/AVP 8 101 13 98
        a=rtpmap:8 PCMA/8000
        a=rtpmap:101 telephone-event/8000
        a=fmtp:101 0-15
        a=rtpmap:13 CN/8000
        a=rtpmap:98 PCMA/8000
        a=gpmd:98 vbd=yes
        a=sendrecv
05:50:25.016530 IP (tos 0x68, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 399)
    localhost..6060 > localhost..5060: SIP, length: 371
        ACK sip:22@127.0.0.1:6060 SIP/2.0
        Via: SIP/2.0/UDP 127.0.0.1:6060;rport;branch=z9hG4bK218738913
        Route: <sip:192.168.20.120:5060;transport=udp;lr>
        From: <sip:11@192.168.20.120>;tag=1378558120
        To: <sip:22@192.168.20.120>;tag=579980422
        Call-ID: 555660805
        CSeq: 20 ACK
        Contact: <sip:11@127.0.0.1:6060>
        Max-Forwards: 70
        User-Agent: eXosip/5.3.0
        Content-Length: 0

05:50:25.028896 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 435)
    localhost..5060 > localhost..6060: SIP, length: 407
        ACK sip:22@127.0.0.1:6060 SIP/2.0
        Via: SIP/2.0/UDP 127.0.0.1:5060;branch=z9hG4bK-524287-1---a21006155dbd3b05;rport
        Via: SIP/2.0/UDP 127.0.0.1:6060;rport=6060;branch=z9hG4bK218738913
        Max-Forwards: 69
        Contact: <sip:11@127.0.0.1:6060>
        To: <sip:22@192.168.20.120>;tag=579980422
        From: <sip:11@192.168.20.120>;tag=1378558120
        Call-ID: 555660805
        CSeq: 20 ACK
        User-Agent: eXosip/5.3.0
        Content-Length: 0

05:50:32.482098 IP (tos 0x68, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 365)
    localhost..6060 > localhost..5060: SIP, length: 337
        BYE sip:11@127.0.0.1:6060 SIP/2.0
        Via: SIP/2.0/UDP 127.0.0.1:6060;rport;branch=z9hG4bK1634545067
        Route: <sip:192.168.20.120:5060;transport=udp;lr>
        From: <sip:22@192.168.20.120>;tag=579980422
        To: <sip:11@192.168.20.120>;tag=1378558120
        Call-ID: 555660805
        CSeq: 2 BYE
        Max-Forwards: 70
        User-Agent: eXosip/5.3.0
        Content-Length: 0

05:50:32.509002 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 401)
    localhost..5060 > localhost..6060: SIP, length: 373
        BYE sip:11@127.0.0.1:6060 SIP/2.0
        Via: SIP/2.0/UDP 127.0.0.1:5060;branch=z9hG4bK-524287-1---b57d0d29b04da02b;rport
        Via: SIP/2.0/UDP 127.0.0.1:6060;rport=6060;branch=z9hG4bK1634545067
        Max-Forwards: 69
        To: <sip:11@192.168.20.120>;tag=1378558120
        From: <sip:22@192.168.20.120>;tag=579980422
        Call-ID: 555660805
        CSeq: 2 BYE
        User-Agent: eXosip/5.3.0
        Content-Length: 0

05:50:32.514367 IP (tos 0x68, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 369)
    localhost..6060 > localhost..5060: SIP, length: 341
        SIP/2.0 200 OK
        Via: SIP/2.0/UDP 127.0.0.1:5060;branch=z9hG4bK-524287-1---b57d0d29b04da02b;rport=5060
        Via: SIP/2.0/UDP 127.0.0.1:6060;rport=6060;branch=z9hG4bK1634545067
        From: <sip:22@192.168.20.120>;tag=579980422
        To: <sip:11@192.168.20.120>;tag=1378558120
        Call-ID: 555660805
        CSeq: 2 BYE
        User-Agent: eXosip/5.3.0
        Content-Length: 0

05:50:32.548428 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 282)
    localhost..5060 > localhost..6060: SIP, length: 254
        SIP/2.0 200 OK
        Via: SIP/2.0/UDP 127.0.0.1:6060;rport=6060;branch=z9hG4bK1634545067
        To: <sip:11@192.168.20.120>;tag=1378558120
        From: <sip:22@192.168.20.120>;tag=579980422
        Call-ID: 555660805
        CSeq: 2 BYE
        User-Agent: eXosip/5.3.0
        Content-Length: 0


17 packets captured
34 packets received by filter
0 packets dropped by kernel
root@comcerto:/#