[asterisk-users] IAX2 Auto-congesting call due to slow response

[Alexandre Rodrigues]

Hi all,

I am trying to connect to a softphone application using an Iax channel on
Asterisk 1.4.30. I can do outbound calls, from softphone to asterisk,  but
not inbound from asterisk to softphone.

I get the following Debug:

----------------------------------------------------------------------
----------------------------------------------------------------------
Tx-Frame Retry[000] -- OSeqno: 000 ISeqno: 000 Type: IAX     Subclass: NEW
   Timestamp: 00018ms  SCall: 04825  DCall: 00000 [10.20.0.201:41764]
   VERSION         : 2
   CALLED NUMBER   : s
   CODEC_PREFS     : (ulaw)
   CALLING NUMBER  : 2000
   CALLING PRESNTN : 0
   CALLING TYPEOFN : 0
   CALLING TRANSIT : 0
   CALLING NAME    : athens_user
   LANGUAGE        : en
   USERNAME        : wtgpl
   FORMAT          : 4
   CAPABILITY      : 4
   ADSICPE         : 2
   DATE TIME       : 2010-05-04  18:48:48

Tx-Frame Retry[001] -- OSeqno: 000 ISeqno: 000 Type: IAX     Subclass: NEW
   Timestamp: 00018ms  SCall: 04825  DCall: 00000 [10.20.0.201:41764]
   VERSION         : 2
   CALLED NUMBER   : s
   CODEC_PREFS     : (ulaw)
   CALLING NUMBER  : 2000
   CALLING PRESNTN : 0
   CALLING TYPEOFN : 0
   CALLING TRANSIT : 0
   CALLING NAME    : athens_user
   LANGUAGE        : en
   USERNAME        : wtgpl
   FORMAT          : 4
   CAPABILITY      : 4
   ADSICPE         : 2
   DATE TIME       : 2010-05-04  18:48:48

Rx-Frame Retry[ No] -- OSeqno: 000 ISeqno: 001 Type: IAX     Subclass:
ACCEPT
   Timestamp: 02002ms  SCall: 00000  DCall: 04825 [10.20.0.201:41764]
   FORMAT          : 4
----------------------------------------------------------------------
----------------------------------------------------------------------

Asterisk doesn't respond to the last message, and I can't understand why.


In asterisk 1.2 it works fine with the following debug:

----------------------------------------------------------------------
----------------------------------------------------------------------

Tx-Frame Retry[000] -- OSeqno: 000 ISeqno: 000 Type: IAX     Subclass: NEW
   Timestamp: 00009ms  SCall: 07531  DCall: 00000 [10.20.0.201:55767]
   VERSION         : 2
   CALLED NUMBER   : s
   CODEC_PREFS     : (ulaw)
   CALLING NUMBER  : 227
   CALLING PRESNTN : 0
   CALLING TYPEOFN : 0
   CALLING TRANSIT : 0
   CALLING NAME    : Admin 2
   LANGUAGE        : en
   FORMAT          : 4
   CAPABILITY      : 63492
   ADSICPE         : 2
   DATE TIME       : 2010-05-04  19:26:02

    -- Called wtgpl
Tx-Frame Retry[001] -- OSeqno: 000 ISeqno: 000 Type: IAX     Subclass: NEW
   Timestamp: 00009ms  SCall: 07531  DCall: 00000 [10.20.0.201:55767]
   VERSION         : 2
   CALLED NUMBER   : s
   CODEC_PREFS     : (ulaw)
   CALLING NUMBER  : 227
   CALLING PRESNTN : 0
   CALLING TYPEOFN : 0
   CALLING TRANSIT : 0
   CALLING NAME    : Admin 2
   LANGUAGE        : en
   FORMAT          : 4
   CAPABILITY      : 63492
   ADSICPE         : 2
   DATE TIME       : 2010-05-04  19:26:02

Rx-Frame Retry[ No] -- OSeqno: 000 ISeqno: 001 Type: IAX     Subclass:
ACCEPT
   Timestamp: 02007ms  SCall: 00000  DCall: 07531 [10.20.0.201:55767]
   FORMAT          : 4

    -- Call accepted by 10.20.0.201 (format ulaw)
    -- Format for call is ulaw
Tx-Frame Retry[-01] -- OSeqno: 001 ISeqno: 001 Type: IAX     Subclass: ACK
----------------------------------------------------------------------
----------------------------------------------------------------------

Thanks in advance,
Alex.
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