Assuming this isn't detected until after the response has been sent for
the REFER, then I would send a single NOTIFY with some suitable error
indicating the problem. Of course in this case you won't actually have
received a sip error, so you will have to simulate one. I am inclined to
treat it as if you had forwarded the request to a proxy and the proxy
had encountered the error and returned a response to you.
Its not entirely clear which sip error is most appropriate to this case.
I think I would go with 404, but there may be other reasonable codes to use.
I see no reason to send a NOTIFY with 100 Trying.
Paul
Jitendra Singh Bhadoriya wrote:
> In my scenario the Refer-To URI was in the format 'sip:[EMAIL PROTECTED]
>
> Where the DNS was not able to resolve the domain-name 'domain.com' of
> the
>
> Host and so the client was not able to send the request out.
>
> Regards,
> Jitendra.
>
> -----Original Message-----
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED] On Behalf Of
> Jitendra Singh Bhadoriya
> Sent: Monday, May 19, 2008 3:27 PM
> To: [email protected]
> Subject: [Sip-implementors] Call Transfer Scenario : Refer-To
> Containingincorrect URI
>
>
>
>
> Hi,
>
>
>
> In the call-transfer scenario in which A calls B and B sends REFER to A
> to transfer the call to C, but the REFER Request contains some invalid
> URI in the Refer-To header, then in this case how should A respond to
> the REFER
> Request. In this case the A will not be able to send the INVITE to the
> target SIP client because the Refer-To URI is wrong, so should it send a
> NOTIFY with (100 trying in the body) and then a second NOTIFY with some
> error Response in this second NOTIFY to the B party. OR should it send
> a
> single NOTIFY with some error response.
>
> Also please tell me what error response should A send to B, in the body
> of NOTIFY??
>
>
>
> Thanks &
> Regards,
> Jitendra.
>
>
>
> _______________________________________________
> Sip-implementors mailing list
> [email protected]
> https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
>
> _______________________________________________
> Sip-implementors mailing list
> [email protected]
> https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
>
_______________________________________________
Sip-implementors mailing list
[email protected]
https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
