-- Accepting AUTHENTICATED call from 203.114.48.52, requested format = 2, actual format = 2
    -- Executing Dial("IAX2/2009@2009/2", "IAX2/2007|60|tT") in new stack
    -- Called 2007
    -- Call accepted by 203.114.48.52 (format gsm)
    -- Format for call is gsm
    -- IAX2/2007/3 is ringing
    -- IAX2/2007/3 answered IAX2/2009@2009/2
    -- Attempting native bridge of IAX2/2009@2009/2 and IAX2/2007/3
    -- Hungup 'IAX2/2007/3'
  == Spawn extension (iax-phone, 2007, 1) exited non-zero on 'IAX2/2009@2009/2'
    -- Hungup 'IAX2/2009@2009/2