[asterisk-users] How to send "404 Not found" SIP reply?

Chris Maciejewski chris at wima.co.uk
Thu Apr 16 12:21:29 CDT 2009

Yes, 'causecode' parameter of Hangup application was missing at:


I have added 'causecode' to the above wiki page now.

Thanks for your help,


2009/4/16 Tilghman Lesher <tilghman at mail.jeffandtilghman.com>:
> On Thursday 16 April 2009 10:28:38 ContactTel Business wrote:
>> Exten => _X.,1,Busy() or playback not found.. just a catch all... or modify
>> source to add another kind of dialplan entry etc..
> Actually, that should send a 486 Busy here.  Close, though.  The OP could
> instead do a Hangup(1), Hangup(2), Hangup(3), or Hangup(26).  All of these
> cause codes map to a SIP status 404.  See RFC 3398 for the complete mapping
> of cause codes to SIP status codes.
> --
> Tilghman
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