1. Phone 13
2. Session Initiation Protocol (302)
3.     Status-Line: SIP/2.0 302 Moved Temporarily
4.     Message Header
5.         Via: SIP/2.0/TCP 192.168.0.10;branch=z9hG4bKNgF8219rN2F0a
6.         From: "0123456789" <sip:0123456789@192.168.0.10>;tag=FHyXaKU10vQKN
7.         To: <sip:13@192.168.0.13:5060;transport=TCP>;tag=59041741
8.         Call-ID: 49675640-d366-1234-4f90-00155d1e2905
9.         CSeq: 94739292 INVITE
10.         Contact: <sip:12@192.168.0.10:5060>
11.         User-Agent: Yealink SIP-T42G 29.80.0.70
12.         Diversion: <sip:13@192.168.0.13:5060;transport=TCP>;reason=unconditional
13.         Content-Length: 0
14.  
15.                
16. Phone 11
17. Session Initiation Protocol (INVITE)
18.     Request-Line: INVITE sip:12@192.168.0.11:5060;transport=TCP SIP/2.0
19.     Message Header
20.         Via: SIP/2.0/TCP 192.168.0.10;branch=z9hG4bK4QavXQ6Da8Xrr
21.         Max-Forwards: 67
22.         From: "0123456789" <sip:0123456789@192.168.0.10>;tag=gtQpcec5X5D6g
23.         To: <sip:12@192.168.0.11:5060;transport=TCP>
24.         Call-ID: 498d46b1-d366-1234-4f90-00155d1e2905
25.         CSeq: 94739292 INVITE
26.         Contact: <sip:mod_sofia@192.168.0.10:5060;transport=tcp>
27.         User-Agent: FreeSWITCH
28.         Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, INFO, UPDATE, REGISTER, REFER, NOTIFY, PUBLISH, SUBSCRIBE
29.         Supported: timer, path, replaces
30.         Allow-Events: talk, hold, conference, presence, as-feature-event, dialog, line-seize, call-info, sla, include-session-description, presence.winfo, message-summary, refer
31.         Privacy: none
32.         Content-Type: application/sdp
33.         Content-Disposition: session
34.         Content-Length: 317
35.         X-FS-Support: update_display,send_info
36.         P-Asserted-Identity: "0123456789" <sip:0123456789@192.168.0.10>
37.     Message Body
38.         Session Description Protocol
39.             Session Description Protocol Version (v): 0
40.             Owner/Creator, Session Id (o): FreeSWITCH 1470127077 1470127078 IN IP4 192.168.0.10
41.             Session Name (s): FreeSWITCH
42.             Connection Information (c): IN IP4 192.168.0.10
43.             Time Description, active time (t): 0 0
44.             Media Description, name and address (m): audio 22474 RTP/AVP 9 0 8 3 101 13
45.             Media Attribute (a): rtpmap:9 G722/8000
46.             Media Attribute (a): rtpmap:0 PCMU/8000
47.             Media Attribute (a): rtpmap:8 PCMA/8000
48.             Media Attribute (a): rtpmap:3 GSM/8000
49.             Media Attribute (a): rtpmap:101 telephone-event/8000
50.             Media Attribute (a): fmtp:101 0-16
51.             Media Attribute (a): rtpmap:13 CN/8000
52.             Media Attribute (a): ptime:20
53.