[SR-Users] CANCEL request and subsequent 487 response to INVTE configuration problem

[Daniel-Constantin Mierla]

Hello,

have you created the transaction for INVITE request?

There is also a function t_cancel_callid() that could help better than
t_reply_callid().

Cheers,
Daniel

On 15/06/15 19:29, Joao Alves wrote:
>
> Hi,
>
>  
>
> I’m creating a configuration is for a SIP <> HTTP gateway (performing
> protocol conversion) and thus all SIP messages and responses needs to
> be generated from the kamailio config file.
>
>  
>
> I’m failing to create the case where the calling user abandons the
> session, and thus, following the reception of a CANCEL a 200 “OK”
> needs to be sent to this transaction and later the 487 “Request
> Terminated” to the SIP INVITE original session.
>
>  
>
> On the traces I see:
>
> SIP INVITE (Cseq 1 INVITE) -->
>
> 100 Trying (Cseq 1 INVITE) <--
>
> 180 Ringing (Cseq 1 INVITE) <--
>
> SIP CANCEL (Cseq 1 CANCEL) -->
>
> 200 Ok (CSeq 1 CANCEL) <--
>
> 487 Request Terminated (CSeq 1 CANCEL)
>
>  
>
> Have then tried several options, trying to force the CSeq 1 INVITE but
> without success.
>
> t_reply_callid("$ci", "$cs", "487", " Request Terminated ");
>
> t_reply_callid("$ci", "$rm", "487", "Request Terminated");
>
> t_reply_callid("$ci", "1", "487", "Request Terminated");
>
>  
>
> For instance, for the last I get the following log.
>
>  6(60226) exec: *** cfgtrace:request_route=[REQINIT]
> c=[/etc/kamailio/kamailio.cfg] l=705 a=28 n=t_reply_callid
>
>  6(60226) DEBUG: tm [t_lookup.c:1715]: t_lookup_callid(): created
> comparable call_id header field: >Call-ID:
> 76589ZTJmNTAwZDhlOTZiM2I3MjhhYzllNjgyOWVjZGZmMzk
>
> < 
>
>  6(60226) DEBUG: tm [t_lookup.c:1719]: t_lookup_callid(): created
> comparable cseq header field: >CSeq: 1 INVITE<
>
>  6(60226) DEBUG: tm [t_lookup.c:1722]: t_lookup_callid(): just locked
> hash index 18668, looking for transactions there:
>
>  6(60226) DEBUG: tm [t_lookup.c:1749]: t_lookup_callid(): DEBUG:
> t_lookup_callid: transaction not found.
>
>  6(60226) DEBUG: tmx [tmx_mod.c:500]: t_reply_callid(): Lookup failed
> - no transaction
>
>  
>
> Could you assist here?
>
>  
>
> Thanks,
>
> Joao
>
>  
>
>  
>
>  
>
> *Joao Alves***
>
> Solution Architect, Unified Communications
>
>  
>
> +351 214094660 (desk)
>
> +351 912783702 (mobile)
>
>  
>
> *AMDOCS |****EMBRACE CHALLENGE****EXPERIENCE SUCCESS*
>
>  
>
> This message and the information contained herein is proprietary and
> confidential and subject to the Amdocs policy statement, you may
> review at http://www.amdocs.com/email_disclaimer.asp
>
>
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-- 
Daniel-Constantin Mierla
http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda
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