RE: [Sip] Question on rfc3263 - locating sip servers

["Bang Du" <bangdu@ccpu.com>]

Hi Udi,
In either case, you need to do the dns query.

Regards,
Bang

-----Original Message-----
From: sip-admin@ietf.org [mailto:sip-admin@ietf.org]On Behalf Of Udi
Weintrob
Sent: Thursday, June 05, 2003 12:02 AM
To: sip@ietf.org
Subject: [Sip] Question on rfc3263 - locating sip servers


Hi,
I have a question regarding RFC3263.

from the RFC (4):
Because the ACK request for 2xx responses to INVITE constitutes a
different transaction, there is no requirement that it be delivered
to the same server that received the original request (indeed, if
that server did not record-route, it will not get the ACK).

Does that mean that for ACK on 2xx responses, I need to re-query the DNS
server (assuming a non IP uri)?
Do I need to query the DNS even if the URI of the ACK is the same as the URI
of the initial INVITE request?

thanks,
Udi J. Tirosh.

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_______________________________________________
Sip mailing list  https://www1.ietf.org/mailman/listinfo/sip
This list is for NEW development of the core SIP Protocol
Use sip-implementors@cs.columbia.edu for questions on current sip
Use sipping@ietf.org for new developments on the application of sip