Session Initiation Protocol
    Request-Line: NOTIFY sip:202@10.0.0.8:5060;transport=udp SIP/2.0
        Method: NOTIFY
        [Resent Packet: False]
    Message Header
        Via: SIP/2.0/UDP 1.1.1.1:5060;branch=z9hG4bK5539474a;rport
            Transport: UDP
            Sent-by Address: 1.1.1.1
            Sent-by port: 5060
            Branch: z9hG4bK5539474a
            RPort: rport
        From: "" <sip:59@1.1.1.1:5060>;tag=as045d1e50
            SIP Display info: ""
            SIP from address: sip:59@1.1.1.1:5060
            SIP tag: as045d1e50
        To: "20" <sip:202@1.1.1.1:5060>;tag=85dda9499c
            SIP Display info: "20"
            SIP to address: sip:202@1.1.1.1:5060
            SIP tag: 85dda9499c
        Contact: <sip:59@1.1.1.1>
            Contact Binding: <sip:59@1.1.1.1>
                URI: <sip:59@1.1.1.1>
                    SIP contact address: sip:59@1.1.1.1
        Call-ID: f1ed6097b06e051e
        CSeq: 102 NOTIFY
            Sequence Number: 102
            Method: NOTIFY
        User-Agent: iPBX 100
        Max-Forwards: 70
        Event: dialog
        Content-Type: application/dialog-info+xml
        Subscription-State: active
        Content-Length: 207
    Message Body
        <?xml version="1.0"?>\n
        <dialog-info xmlns="urn:ietf:params:xml:ns:dialog-info" version="0" state="full" entity="sip:59@1.1.1.1:5060">\n
        <dialog id="59">\n
        <state>terminated</state>\n
        </dialog>\n
        </dialog-info>\n