linphone

[root@speechapp ~]# tcpdump -i any udp port 5060 -nnv
tcpdump: listening on any, link-type LINUX_SLL (Linux cooked), capture size 65535 bytes
13:53:28.001863 IP (tos 0x0, ttl 126, id 20922, offset 0, flags [none], proto UDP (17), length 350)
    10.3.181.21.5060 > 10.209.112.6.5060: SIP, length: 322
        OPTIONS sip:play@10.209.112.6:5060 SIP/2.0
        Via: SIP/2.0/UDP 192.168.0.25:5060;rport;branch=z9hG4bK13804
        From: <sip:test@10.3.181.21>;tag=27011
        To: <sip:play@10.209.112.6:5060>
        Call-ID: 28285
        CSeq: 20 OPTIONS
        Accept: application/sdp
        Max-Forwards: 70
        User-Agent: Linphone/3.5.2 (eXosip2/3.6.0)
        Content-Length: 0


13:53:28.004743 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 585)
    10.209.112.6.5060 > 10.3.181.21.5060: SIP, length: 557
        SIP/2.0 200 OK
        Via: SIP/2.0/UDP 192.168.0.25:5060;received=10.3.181.21;branch=z9hG4bK13804
        From: <sip:test@10.3.181.21>;tag=27011
        Call-ID: 28285
        CSeq: 20 OPTIONS
        Contact: <sip:10.209.112.6:5060;transport=UDP>
        To: <sip:play@10.209.112.6:5060>;tag=7ff71c2d7bab27ca5292d0ada12f216b251a1ca0
        Allow: INVITE,ACK,BYE,INFO,OPTIONS,NOTIFY,PRACK
        Accept-Encoding:
        Accept-Language: en
        Accept: application/sdp, multipart/mixed, message/sipfrag, application/media_control+xml
        Retry-After: 600
        Supported: timer, 100rel, replaces
        Content-Length:          0


13:53:28.093713 IP (tos 0x0, ttl 126, id 20924, offset 0, flags [none], proto UDP (17), length 804)
    10.3.181.21.5060 > 10.209.112.6.5060: SIP, length: 776
        INVITE sip:play@10.209.112.6:5060 SIP/2.0
        Via: SIP/2.0/UDP 192.168.0.25:5060;rport;branch=z9hG4bK23294
        From: <sip:test@10.3.181.21>;tag=20079
        To: <sip:play@10.209.112.6:5060>
        Call-ID: 29220
        CSeq: 20 INVITE
        Contact: <sip:test@10.3.181.21>
        Content-Type: application/sdp
        Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, NOTIFY, MESSAGE, SUBSCRIBE, INFO
        Max-Forwards: 70
        User-Agent: Linphone/3.5.2 (eXosip2/3.6.0)
        Subject: Phone call
        Content-Length:   309

        v=0
        o=test 276 276 IN IP4 192.168.0.25
        s=Talk
        c=IN IP4 192.168.0.25
        t=0 0
        m=audio 7078 RTP/AVP 112 111 110 3 0 8 101
        a=rtpmap:112 speex/32000
        a=fmtp:112 vbr=on
        a=rtpmap:111 speex/16000
        a=fmtp:111 vbr=on
        a=rtpmap:110 speex/8000
        a=fmtp:110 vbr=on
        a=rtpmap:101 telephone-event/8000
        a=fmtp:101 0-11

13:53:28.100457 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 479)
    10.209.112.6.5060 > 10.3.181.21.5060: SIP, length: 451
        SIP/2.0 180 Ringing
        Via: SIP/2.0/UDP 192.168.0.25:5060;received=10.3.181.21;branch=z9hG4bK23294
        From: <sip:test@10.3.181.21>;tag=20079
        Call-ID: 29220
        CSeq: 20 INVITE
        Contact: <sip:10.209.112.6:5060;transport=UDP>
        To: <sip:play@10.209.112.6:5060>;tag=7ff71c2df087625a93b93afcc42ae7da34b0a5e9
        Server: speechapp
        Allow: INVITE, ACK, BYE, CANCEL, PRACK, INFO, REFER, UPDATE, OPTIONS, SUBSCRIBE, NOTIFY
        Content-Length:          0


13:53:28.101298 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 778)
    10.209.112.6.5060 > 10.3.181.21.5060: SIP, length: 750
        SIP/2.0 200 OK
        Via: SIP/2.0/UDP 192.168.0.25:5060;received=10.3.181.21;branch=z9hG4bK23294
        From: <sip:test@10.3.181.21>;tag=20079
        To: <sip:play@10.209.112.6:5060>;tag=7ff71c2df087625a93b93afcc42ae7da34b0a5e9
        Call-ID: 29220
        CSeq: 20 INVITE
        Contact: <sip:10.209.112.6:5060;transport=UDP>
        Content-Type: application/sdp
        Content-Length:        200
        Server: speechapp
        Session-Expires: 1800;refresher=uas
        Supported: timer, 100rel, replaces
        Allow: INVITE, ACK, BYE, CANCEL, PRACK, INFO, REFER, UPDATE, OPTIONS, SUBSCRIBE, NOTIFY

        v=0
        o=speechapp 45 2 IN IP4 10.209.112.6
        s=-
        c=IN IP4 10.209.112.6
        t=0 0
        m=audio 30088 RTP/AVP 3 101
        c=IN IP4 10.209.112.6
        a=rtpmap:3 GSM/8000/1
        a=rtpmap:101 telephone-event/8000/1
        a=sendrecv

13:53:28.194815 IP (tos 0x0, ttl 126, id 20926, offset 0, flags [none], proto UDP (17), length 403)
    10.3.181.21.5060 > 10.209.112.6.5060: SIP, length: 375
        ACK sip:10.209.112.6:5060;transport=UDP SIP/2.0
        Via: SIP/2.0/UDP 192.168.0.25:5060;rport;branch=z9hG4bK9205
        From: <sip:test@10.3.181.21>;tag=20079
        To: <sip:play@10.209.112.6:5060>;tag=7ff71c2df087625a93b93afcc42ae7da34b0a5e9
        Call-ID: 29220
        CSeq: 20 ACK
        Contact: <sip:test@10.3.181.21>
        Max-Forwards: 70
        User-Agent: Linphone/3.5.2 (eXosip2/3.6.0)
        Content-Length: 0


13:53:32.030918 IP (tos 0x0, ttl 126, id 21122, offset 0, flags [none], proto UDP (17), length 407)
    10.3.181.21.5060 > 10.209.112.6.5060: SIP, length: 379
        BYE sip:10.209.112.6:5060;transport=UDP SIP/2.0
        Via: SIP/2.0/UDP 192.168.0.25:5060;rport;branch=z9hG4bK49
        From: <sip:test@10.3.181.21>;tag=20079
        To: <sip:play@10.209.112.6:5060>;tag=7ff71c2df087625a93b93afcc42ae7da34b0a5e9
        Call-ID: 29220
        CSeq: 21 BYE
        Contact: <sip:test@192.168.0.25:5060>
        Max-Forwards: 70
        User-Agent: Linphone/3.5.2 (eXosip2/3.6.0)
        Content-Length: 0


13:53:32.033002 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 297)
    10.209.112.6.5060 > 10.3.181.21.5060: SIP, length: 269
        SIP/2.0 200 OK
        Via: SIP/2.0/UDP 192.168.0.25:5060;received=10.3.181.21;branch=z9hG4bK49
        From: <sip:test@10.3.181.21>;tag=20079
        To: <sip:play@10.209.112.6:5060>;tag=7ff71c2df087625a93b93afcc42ae7da34b0a5e9
        Call-ID: 29220
        CSeq: 21 BYE
        Content-Length:          0