1.  
2. send 1003 bytes to udp/[107.6.67.238]:5060 at 17:57:16.583765:
3.    ------------------------------------------------------------------------
4.    SIP/2.0 200 OK
5.    Via: SIP/2.0/UDP 107.6.67.238:5060;branch=z9hG4bK274c6c11;rport=5060
6.    From: "PSNTECH 8458378427" <sip:8458378427@107.6.67.238>;tag=as557b12dd
7.    To: <sip:8452131229@52.205.225.132:5080>;tag=UN4H2r7U8ryBQ
8.    Call-ID: 79ec339122e3b1ef795337dc01393215@107.6.67.238:5060
9.    CSeq: 102 INVITE
10.    Contact: <sip:8452131229@172.31.60.221:5080;transport=udp>
11.    User-Agent: FreeSWITCH-mod_sofia/1.7.0~64bit
12.    Accept: application/sdp
13.    Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, INFO, UPDATE, REGISTER, REFER, NOTIFY
14.    Supported: timer, path, replaces
15.    Allow-Events: talk, hold, conference, refer
16.    Content-Type: application/sdp
17.    Content-Disposition: session
18.    Content-Length: 222
19.    Remote-Party-ID: "8452131229" <sip:8452131229@52.205.225.132>;party=calling;privacy=off;screen=no
20.  
21.  
22.    v=0
23.    o=FreeSWITCH 1480411740 1480411741 IN IP4 172.31.60.221
24.    s=FreeSWITCH
25.    c=IN IP4 172.31.60.221
26.    t=0 0
27.    m=audio 30496 RTP/AVP 0 101
28.    a=rtpmap:0 PCMU/8000
29.    a=rtpmap:101 telephone-event/8000
30.    a=fmtp:101 0-16
31.    a=ptime:20
32.    ------------------------------------------------------------------------