-- Accepting UNAUTHENTICATED call from 201.27.90.194:
       > requested format = gsm,
       > requested prefs = (),
       > actual format = gsm,
       > host prefs = (),
       > priority = mine
    -- Executing Dial("IAX2/201.27.90.194:4569-3", "Zap/g1/44882120|600") in new stack
    -- Requested transfer capability: 0x00 - SPEECH
    -- Called g1/44882120
  == Primary D-Channel on span 1 down
Jun 22 02:22:43 WARNING[11892]: chan_zap.c:2289 pri_find_dchan: No D-channels available!  Using Primary channel 16 as D-channel anyway!
Jun 22 02:22:43 WARNING[11905]: app_dial.c:713 wait_for_answer: Unable to forward voice
    -- Hungup 'Zap/1-1'
  == Everyone is busy/congested at this time (1:0/0/1)
    -- Executing NoOp("IAX2/201.27.90.194:4569-3", "CHANUNAVAIL") in new stack
  == Primary D-Channel on span 1 down
Jun 22 02:22:46 WARNING[11892]: chan_zap.c:2289 pri_find_dchan: No D-channels available!  Using Primary channel 16 as D-channel anyway!
       > cdr_odbc: Query Successful!
    -- Hungup 'IAX2/201.27.90.194:4569-3'