-- Executing [1003@ag01:1] Dial("SIP/1002-00000008", "SIP/1003,,Tt") in new stack
  == Using SIP RTP TOS bits 184
  == Using SIP RTP CoS mark 5
    -- Called 1003
    -- SIP/1003-00000009 is ringing
[Oct  6 15:18:54] NOTICE[30225]: chan_sip.c:23245 handle_request_subscribe: Received SIP subscribe for peer without mailbox: 1003
    -- SIP/1003-00000009 answered SIP/1002-00000008
    -- Locally bridging SIP/1002-00000008 and SIP/1003-00000009
  == Spawn extension (ag01, 1003, 1) exited non-zero on 'SIP/1002-00000008'