Subject: [Sipping] ACK without Route

From: "Prashant" <[email-masked]>
Date: Wed, 30 Oct 2002 17:57:47 -0400

Hi all,
 The ACK message with no Route header is generally treated as a response to non-200 message. 

  However in case, when  our proxy is routing the calls between two SIP proxies and one of the SIP proxy does not support route header. The ACK message  comes with no Route header and it gets drop. Our proxy is mostly stateless.

Is there any other option than Route header to check the treatment of ACK message i.e to proxy it or to drop it. or is it a confirmation of  200 response or a non-200 response. 

thanks
Prashant

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