x-lite

    10.3.181.21.5060 > 10.209.112.6.5060: SIP, length: 765
        INVITE sip:play@localhost SIP/2.0
        Via: SIP/2.0/UDP 10.3.181.21:5060;branch=z9hG4bK-d8754z-ea4e80b104a2b0ef-1---d8754z-;rport
		From: <sip:test@localhost>;tag=1a68043b
		To: <sip:play@localhost>
		Call-ID: MWFkZWZkNzA5MjA4NTJlMjAyOTRjNDU3YTQ4ZWJmM2M.
        CSeq: 1 INVITE
		Contact: <sip:test@10.3.181.21:5060>
		Content-Type: application/sdp
        Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, NOTIFY, MESSAGE, SUBSCRIBE, INFO
		Max-Forwards: 70
		User-Agent: X-Lite release 5.0.0 stamp 67284
        Supported: replaces
		Content-Length: 240

        v=0
        o=- 13013773479811309 1 IN IP4 10.3.181.21
        s=CounterPath X-Lite 5.0.0
        c=IN IP4 10.3.181.21
        b=AS:1638
        t=0 0
        m=audio 5062 RTP/AVP 107 0 8 101
        a=rtpmap:107 BV32/16000
        a=rtpmap:101 telephone-event/8000
        a=fmtp:101 0-15
        a=sendrecv

    10.209.112.6.5060 > 10.3.181.21.5060: SIP, length: 512
        SIP/2.0 180 Ringing
        Via: SIP/2.0/UDP 10.3.181.21:5060;received=10.3.181.21;branch=z9hG4bK-d8754z-ea4e80b104a2b0ef-1---d8754z-
        From: <sip:test@localhost>;tag=1a68043b
        Call-ID: MWFkZWZkNzA5MjA4NTJlMjAyOTRjNDU3YTQ4ZWJmM2M.
        CSeq: 1 INVITE
        Contact: <sip:10.209.112.6:5060;transport=UDP>
        To: <sip:play@localhost>;tag=7ff71c2ddfecb800b1d3bb993452ff12c877b123
        Server: speechapp
        Allow: INVITE, ACK, BYE, CANCEL, PRACK, INFO, REFER, UPDATE, OPTIONS, SUBSCRIBE, NOTIFY
        Content-Length:          0

    10.209.112.6.5060 > 10.3.181.21.5060: SIP, length: 812
        SIP/2.0 200 OK
        Via: SIP/2.0/UDP 10.3.181.21:5060;received=10.3.181.21;branch=z9hG4bK-d8754z-ea4e80b104a2b0ef-1---d8754z-
        From: <sip:test@localhost>;tag=1a68043b
        To: <sip:play@localhost>;tag=7ff71c2ddfecb800b1d3bb993452ff12c877b123
        Call-ID: MWFkZWZkNzA5MjA4NTJlMjAyOTRjNDU3YTQ4ZWJmM2M.
        CSeq: 1 INVITE
        Contact: <sip:10.209.112.6:5060;transport=UDP>
        Content-Type: application/sdp
        Content-Length:        201
        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 36 2 IN IP4 10.209.112.6
        s=-
        c=IN IP4 10.209.112.6
        t=0 0
        m=audio 30070 RTP/AVP 0 101
        c=IN IP4 10.209.112.6
        a=rtpmap:0 pcmu/8000/1
        a=rtpmap:101 telephone-event/8000/1
        a=sendrecv

    10.3.181.21.5060 > 10.209.112.6.5060: SIP, length: 444
        ACK sip:10.209.112.6:5060;transport=UDP SIP/2.0
        Via: SIP/2.0/UDP 10.3.181.21:5060;branch=z9hG4bK-d8754z-48365def1259f4ac-1---d8754z-;rport
        Max-Forwards: 70
        Contact: <sip:test@10.3.181.21:5060>
        To: <sip:play@localhost>;tag=7ff71c2ddfecb800b1d3bb993452ff12c877b123
        From: <sip:test@localhost>;tag=1a68043b
        Call-ID: MWFkZWZkNzA5MjA4NTJlMjAyOTRjNDU3YTQ4ZWJmM2M.
        CSeq: 1 ACK
        User-Agent: X-Lite release 5.0.0 stamp 67284
        Content-Length: 0

    10.3.181.21.5060 > 10.209.112.6.5060: SIP, length: 444
        BYE sip:10.209.112.6:5060;transport=UDP SIP/2.0
        Via: SIP/2.0/UDP 10.3.181.21:5060;branch=z9hG4bK-d8754z-4a8c189a40a9e6e9-1---d8754z-;rport
        Max-Forwards: 70
        Contact: <sip:test@10.3.181.21:5060>
        To: <sip:play@localhost>;tag=7ff71c2ddfecb800b1d3bb993452ff12c877b123
        From: <sip:test@localhost>;tag=1a68043b
        Call-ID: MWFkZWZkNzA5MjA4NTJlMjAyOTRjNDU3YTQ4ZWJmM2M.
        CSeq: 2 BYE
        User-Agent: X-Lite release 5.0.0 stamp 67284
        Content-Length: 0

    10.209.112.6.5060 > 10.3.181.21.5060: SIP, length: 333
        SIP/2.0 200 OK
        Via: SIP/2.0/UDP 10.3.181.21:5060;received=10.3.181.21;branch=z9hG4bK-d8754z-4a8c189a40a9e6e9-1---d8754z-
        From: <sip:test@localhost>;tag=1a68043b
        To: <sip:play@localhost>;tag=7ff71c2ddfecb800b1d3bb993452ff12c877b123
        Call-ID: MWFkZWZkNzA5MjA4NTJlMjAyOTRjNDU3YTQ4ZWJmM2M.
        CSeq: 2 BYE
        Content-Length:          0