Phone 13
Session Initiation Protocol (302)
    Status-Line: SIP/2.0 302 Moved Temporarily
    Message Header
        Via: SIP/2.0/TCP 192.168.0.10;branch=z9hG4bKNgF8219rN2F0a
        From: "0123456789" <sip:0123456789@192.168.0.10>;tag=FHyXaKU10vQKN
        To: <sip:13@192.168.0.13:5060;transport=TCP>;tag=59041741
        Call-ID: 49675640-d366-1234-4f90-00155d1e2905
        CSeq: 94739292 INVITE
        Contact: <sip:12@192.168.0.10:5060>
        User-Agent: Yealink SIP-T42G 29.80.0.70
        Diversion: <sip:13@192.168.0.13:5060;transport=TCP>;reason=unconditional
        Content-Length: 0

		
Phone 11
Session Initiation Protocol (INVITE)
    Request-Line: INVITE sip:12@192.168.0.11:5060;transport=TCP SIP/2.0
    Message Header
        Via: SIP/2.0/TCP 192.168.0.10;branch=z9hG4bK4QavXQ6Da8Xrr
        Max-Forwards: 67
        From: "0123456789" <sip:0123456789@192.168.0.10>;tag=gtQpcec5X5D6g
        To: <sip:12@192.168.0.11:5060;transport=TCP>
        Call-ID: 498d46b1-d366-1234-4f90-00155d1e2905
        CSeq: 94739292 INVITE
        Contact: <sip:mod_sofia@192.168.0.10:5060;transport=tcp>
        User-Agent: FreeSWITCH
        Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, INFO, UPDATE, REGISTER, REFER, NOTIFY, PUBLISH, SUBSCRIBE
        Supported: timer, path, replaces
        Allow-Events: talk, hold, conference, presence, as-feature-event, dialog, line-seize, call-info, sla, include-session-description, presence.winfo, message-summary, refer
        Privacy: none
        Content-Type: application/sdp
        Content-Disposition: session
        Content-Length: 317
        X-FS-Support: update_display,send_info
        P-Asserted-Identity: "0123456789" <sip:0123456789@192.168.0.10>
    Message Body
        Session Description Protocol
            Session Description Protocol Version (v): 0
            Owner/Creator, Session Id (o): FreeSWITCH 1470127077 1470127078 IN IP4 192.168.0.10
            Session Name (s): FreeSWITCH
            Connection Information (c): IN IP4 192.168.0.10
            Time Description, active time (t): 0 0
            Media Description, name and address (m): audio 22474 RTP/AVP 9 0 8 3 101 13
            Media Attribute (a): rtpmap:9 G722/8000
            Media Attribute (a): rtpmap:0 PCMU/8000
            Media Attribute (a): rtpmap:8 PCMA/8000
            Media Attribute (a): rtpmap:3 GSM/8000
            Media Attribute (a): rtpmap:101 telephone-event/8000
            Media Attribute (a): fmtp:101 0-16
            Media Attribute (a): rtpmap:13 CN/8000
            Media Attribute (a): ptime:20