promethus*CLI> iax2 debug
IAX2 Debugging Enabled
Tx-Frame Retry[000] -- OSeqno: 000 ISeqno: 000 Type: IAX     Subclass: POKE
   Timestamp: 00015ms  SCall: 00004  DCall: 00000 [192.168.1.100:4569]
Tx-Frame Retry[001] -- OSeqno: 000 ISeqno: 000 Type: IAX     Subclass: POKE
   Timestamp: 00015ms  SCall: 00004  DCall: 00000 [192.168.1.100:4569]
Tx-Frame Retry[002] -- OSeqno: 000 ISeqno: 000 Type: IAX     Subclass: POKE
   Timestamp: 00015ms  SCall: 00004  DCall: 00000 [192.168.1.100:4569]
Rx-Frame Retry[ No] -- OSeqno: 000 ISeqno: 000 Type: IAX     Subclass: NEW
   Timestamp: 00000ms  SCall: 29171  DCall: 00000 [192.168.1.100:4569]
   CALLING NUMBER  : 1004
   CALLING NAME    : 1004
   FORMAT          : 4
   CAPABILITY      : 271
   USERNAME        : 1004
   CALLED NUMBER   : *1004
   DNID            : *1004

Tx-Frame Retry[000] -- OSeqno: 000 ISeqno: 001 Type: IAX     Subclass: AUTHREQ
   Timestamp: 00010ms  SCall: 00008  DCall: 29171 [192.168.1.100:4569]
   AUTHMETHODS     : 3
   CHALLENGE       : 960919758
   USERNAME        : 1004

Rx-Frame Retry[ No] -- OSeqno: 001 ISeqno: 001 Type: IAX     Subclass: AUTHREP
   Timestamp: 00080ms  SCall: 29171  DCall: 00008 [192.168.1.100:4569]
   MD5 RESULT      : febc8b4cf02505519ebeec171c8dd3a1

    -- Accepting AUTHENTICATED call from 192.168.1.100:
       > requested format = ulaw,
       > requested prefs = (),
       > actual format = ulaw,
       > host prefs = (ulaw|gsm),
       > priority = mine
Tx-Frame Retry[000] -- OSeqno: 001 ISeqno: 002 Type: IAX     Subclass: ACCEPT
   Timestamp: 00096ms  SCall: 00008  DCall: 29171 [192.168.1.100:4569]
   FORMAT          : 4

    -- Executing Dial("IAX2/1004@1004-8", "IAX2/1004|20|T") in new stack
Rx-Frame Retry[ No] -- OSeqno: 002 ISeqno: 002 Type: IAX     Subclass: ACK
   Timestamp: 00096ms  SCall: 29171  DCall: 00008 [192.168.1.100:4569]
Tx-Frame Retry[000] -- OSeqno: 000 ISeqno: 000 Type: IAX     Subclass: NEW
   Timestamp: 00018ms  SCall: 00009  DCall: 00000 [192.168.1.100:4569]
   VERSION         : 2
   CALLED NUMBER   : s
   CODEC_PREFS     : (ulaw|gsm)
   CALLING NUMBER  : 1004
   CALLING PRESNTN : 1
   CALLING TYPEOFN : 0
   CALLING TRANSIT : 0
   CALLING NAME    : Rich
   LANGUAGE        : en
   FORMAT          : 4
   CAPABILITY      : 63494
   ADSICPE         : 0
   DATE TIME       : 2005-07-28  10:33:24

    -- Called 1004
Rx-Frame Retry[ No] -- OSeqno: 000 ISeqno: 001 Type: IAX     Subclass: REJECT
   Timestamp: 00000ms  SCall: 29172  DCall: 00009 [192.168.1.100:4569]
   CAUSE           : We are busy!

Jul 28 10:33:24 WARNING[89304]: chan_iax2.c:6820 socket_read: Call rejected by 192.168.1.100: We are busy!
Tx-Frame Retry[-01] -- OSeqno: 001 ISeqno: 001 Type: IAX     Subclass: ACK
   Timestamp: 00089ms  SCall: 00009  DCall: 29172 [192.168.1.100:4569]
    -- Hungup 'IAX2/1004-9'
  == No one is available to answer at this time (1:0/0/0)