-- Executing SetCallerID("SIP/purrdeta-081d19b8", "3602267455") in new stack
    -- Executing Dial("SIP/purrdeta-081d19b8", "IAX2/115043379@115043379/18178964075") in new stack
May  9 22:06:41 WARNING[10129]: channel.c:509 ast_best_codec: Don't know any of 0xf800 formats
May  9 22:06:41 WARNING[10129]: channel.c:509 ast_best_codec: Don't know any of 0xf800 formats
May  9 22:06:41 WARNING[10129]: chan_iax2.c:8031 iax2_request: Unable to create translator path for unknown to ulaw on IAX2/115043379-8
    -- Hungup 'IAX2/115043379-8'
May  9 22:06:41 NOTICE[10129]: app_dial.c:1056 dial_exec_full: Unable to create channel of type 'IAX2' (cause 0 - Unknown)
  == Everyone is busy/congested at this time (1:0/0/1)
    -- Executing Hangup("SIP/purrdeta-081d19b8", "") in new stack