2019-03-17 14:59:16.711228 [DEBUG] switch_core_state_machine.c:662 (sofia/SIP_TTL_DEL/8144659796) State CONSUME_MEDIA
   INVITE sip:8144659796@10.50.180.1 SIP/2.0
   Via: SIP/2.0/UDP 10.50.182.26;rport;branch=z9hG4bKF8497pB0rg68S
   Max-Forwards: 69
   From: "61198699" <sip:61198699@10.50.182.26>;tag=eHSNcp2c20p2D
   To: <sip:8144659796@10.50.180.1>
   Call-ID: f9e7eaa4-c339-1237-d0b9-000c2949dfdc
2019-03-17 14:59:16.711228 [DEBUG] switch_core_state_machine.c:662 (sofia/SIP_TTL_DEL/8144659796) State CONSUME_MEDIA going to sleep
   CSeq: 1853686 INVITE
   Contact: <sip:61198600@10.50.182.26:5060;transport=udp;gw=61198600>
   User-Agent: SIPOne
   Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, INFO, UPDATE, REGISTER, NOTIFY
   Supported: path, replaces
   Allow-Events: talk, hold, conference, refer
   Content-Type: application/sdp
   Content-Disposition: session
   Content-Length: 244
   X-FS-Support: update_display,send_info
   Remote-Party-ID: "61198699" <sip:61198699@10.50.182.26>;party=calling;screen=yes;privacy=off

   v=0
   o=FreeSWITCH 1552792732 1552792733 IN IP4 10.50.182.26
   s=FreeSWITCH
   c=IN IP4 10.50.182.26
   t=0 0
   m=audio 22224 RTP/AVP 8 0 101
   a=rtpmap:8 PCMA/8000
   a=rtpmap:0 PCMU/8000
   a=rtpmap:101 telephone-event/8000
   a=fmtp:101 0-16
   a=ptime:20
   ------------------------------------------------------------------------
2019-03-17 14:59:16.711228 [DEBUG] sofia.c:7084 Channel sofia/SIP_TTL_DEL/8144659796 entering state [calling][0]
recv 277 bytes from udp/[10.50.180.1]:5060 at 14:59:16.842054:
   ------------------------------------------------------------------------
   SIP/2.0 100 Trying
   Via: SIP/2.0/UDP 10.50.182.26;branch=z9hG4bKF8497pB0rg68S;rport=5060
   Call-ID: f9e7eaa4-c339-1237-d0b9-000c2949dfdc
   From: "61198699"<sip:61198699@10.50.182.26>;tag=eHSNcp2c20p2D
   To: <sip:8144659796@10.50.180.1>
   CSeq: 1853686 INVITE
   Content-Length: 0

   ------------------------------------------------------------------------
recv 355 bytes from udp/[10.50.180.1]:5060 at 14:59:16.859113:
   ------------------------------------------------------------------------
   SIP/2.0 480 Temporarily Unavailable
   Via: SIP/2.0/UDP 10.50.182.26;branch=z9hG4bKF8497pB0rg68S;rport=5060
   Call-ID: f9e7eaa4-c339-1237-d0b9-000c2949dfdc
   From: "61198699"<sip:61198699@10.50.182.26>;tag=eHSNcp2c20p2D
   To: <sip:8144659796@10.50.180.1>;tag=aa2c106-gtMb1e847eb11e
   CSeq: 1853686 INVITE
   User-Agent: ZTE Softswitch/1.0.0
   Content-Length: 0

   ------------------------------------------------------------------------
send 335 bytes to udp/[10.50.180.1]:5060 at 14:59:16.859287:
   ------------------------------------------------------------------------
   ACK sip:8144659796@10.50.180.1 SIP/2.0
   Via: SIP/2.0/UDP 10.50.182.26;rport;branch=z9hG4bKF8497pB0rg68S
   Max-Forwards: 69
   From: "61198699" <sip:61198699@10.50.182.26>;tag=eHSNcp2c20p2D
   To: <sip:8144659796@10.50.180.1>;tag=aa2c106-gtMb1e847eb11e
   Call-ID: f9e7eaa4-c339-1237-d0b9-000c2949dfdc
   CSeq: 1853686 ACK
   Content-Length: 0