[asterisk-dev] resending cause codes

[Olle E. Johansson]

30 nov 2010 kl. 14.40 skrev Bruce McAlister:

> I've not tried what you are trying to do, but, should
> 
> exten => _X.,1,Dial(SIP/AsteriskA,${EXTEN})
> 
> not be
> 
> exten => _X.,1,Dial(SIP/AsteriskA/${EXTEN})
> 
> 
> 
> -----Original Message-----
> From: asterisk-dev-bounces at lists.digium.com [mailto:asterisk-dev-bounces at lists.digium.com] On Behalf Of marek cervenka
> Sent: 30 November 2010 09:21
> To: asterisk-dev at lists.digium.com
> Subject: [asterisk-dev] resending cause codes
> 
> hello,
> 
> i know that my question is partially "user question" but i think i 
> want something which isn't possible now. please give me a direction how to 
> implement
> 
> i'm testing sending ISDN cause codes to customer pbx (below example 
> scenario for unallocated number)
> 
> topology:
> PSTN-E1-AsteriskA-sip-AsteriskB-sip-SOMEPBX
> 
> call from SOMEPBX to PSTN (to unallocated number)
> 
> AsteriskA sends to AsteriskB
> Status-Line: SIP/2.0 503 Service Unavailable
>   X-Asterisk-HangupCause: Unallocated (unassigned) number
>   X-Asterisk-HangupCauseCode: 1
> 
> ${HANGUPCAUSE} on AsteriskB is 34 (asterisk translation of sip/503)
> 
> how can i resend X-Asterisk-HangupCauseCode from AsteriskB to SOMEPBX?
> 
> i'm tried this on AsteriskB
> exten => _X.,1,Dial(SIP/AsteriskA,${EXTEN})
> exten => _X.,n,Hangup(${SIP_HEADER(X-Asterisk-HangupCauseCode)})
> but no success
> 
> why i cannot read X-Asterisk-HangupCauseCode? 
> ${SIP_HEADER(X-Asterisk-HangupCauseCode)} is empty

This is indeed not an asterisk-dev question.

SIP_HEADER only works for the initial INVITE, not for any headers in any other SIP messages.

/O