Session Initiation Protocol
    Request-Line: BYE sip:xxx.xxx.xxx.43:5060;transport=UDP SIP/2.0
        Method: BYE
        Request-URI: sip:xxx.xxx.xxx.43:5060;transport=UDP
            Request-URI Host Part: xxx.xxx.xxx.43
            Request-URI Host Port: 5060
        [Resent Packet: False]
    Message Header
        Via: SIP/2.0/UDP xxx.xxx.xxx.137:22225;branch=z9hG4bK390a025bb61a5f010a79a7f549f2d743;rport
            Transport: UDP
            Sent-by Address: xxx.xxx.xxx.137
            Sent-by port: 22225
            Branch: z9hG4bK390a025bb61a5f010a79a7f549f2d743
            RPort: rport
        Max-Forwards: 70
        From: <sip:48521230886@xxx.xxx.xxx.137>;tag=3776893de6f572f632b05e83485f9dd2
            SIP from address: sip:48521230886@xxx.xxx.xxx.137
                SIP from address User Part: 48521230886
                SIP from address Host Part: xxx.xxx.xxx.137
            SIP tag: 3776893de6f572f632b05e83485f9dd2
        To: <sip:48521289383@xxx.xxx.xxx.137>;tag=6774SIPpTag011
            SIP to address: sip:48521289383@xxx.xxx.xxx.137
                SIP to address User Part: 48521289383
                SIP to address Host Part: xxx.xxx.xxx.137
            SIP tag: 6774SIPpTag011
        Call-ID: 1-3241@xxx.xxx.xxx.41-b2b_1
        CSeq: 201 BYE
            Sequence Number: 201
            Method: BYE
        Contact: Anonymous <sip:48521230886@xxx.xxx.xxx.137:22225>
            Contact Binding: Anonymous <sip:48521230886@xxx.xxx.xxx.137:22225>
                URI: Anonymous <sip:48521230886@xxx.xxx.xxx.137:22225>
                    SIP Display info: Anonymous 
                    SIP contact address: sip:48521230886@xxx.xxx.xxx.137:22225
        User-Agent: Voljatel B2BUA (RADIUS)
        cisco-GUID: 415033116-94487149-3088500870-2308033284
            [Expert Info (Note/Undecoded): Unrecognised SIP header (cisco-GUID)]
                [Message: Unrecognised SIP header (cisco-GUID)]
                [Severity level: Note]
                [Group: Undecoded]
        h323-conf-id: 415033116-94487149-3088500870-2308033284
            [Expert Info (Note/Undecoded): Unrecognised SIP header (h323-conf-id)]
                [Message: Unrecognised SIP header (h323-conf-id)]
                [Severity level: Note]
                [Group: Undecoded]
        Content-Length: 0

Session Initiation Protocol
    Status-Line: SIP/2.0 200 OK
        Status-Code: 200
        [Resent Packet: False]
    Message Header
        To: <sip:48521289383@xxx.xxx.xxx.137>;tag=6774SIPpTag011
            SIP to address: sip:48521289383@xxx.xxx.xxx.137
                SIP to address User Part: 48521289383
                SIP to address Host Part: xxx.xxx.xxx.137
            SIP tag: 6774SIPpTag011
        From: <sip:48521230886@xxx.xxx.xxx.137>;tag=3776893de6f572f632b05e83485f9dd2
            SIP from address: sip:48521230886@xxx.xxx.xxx.137
                SIP from address User Part: 48521230886
                SIP from address Host Part: xxx.xxx.xxx.137
            SIP tag: 3776893de6f572f632b05e83485f9dd2
        Call-ID: 1-3241@xxx.xxx.xxx.41-b2b_1
        CSeq: 201 BYE
            Sequence Number: 201
            Method: BYE
        Via: SIP/2.0/UDP xxx.xxx.xxx.137:22225;branch=z9hG4bK390a025bb61a5f010a79a7f549f2d743;rport
            Transport: UDP
            Sent-by Address: xxx.xxx.xxx.137
            Sent-by port: 22225
            Branch: z9hG4bK390a025bb61a5f010a79a7f549f2d743
            RPort: rport
        Server: SIPP
        Content-Length: 0