Ramesh Tellapati wrote: >Hi, > > 1. My initial SUBSCRIBE with 300 seconds expires is successfully accepted > my > SIP Server. > 2. On the same dialog, my first refresh SUBSCRIBE is sent after 270 > seconds (but > with expires 300 seconds) to keep my SUBSCRIPTION active. It is > successfully > accepted by SIP Server. > 3. On the same dialog, my second refresh SUBSCRIBE is sent after 540 > seconds > (270 seconds + 270 seconds). Proxy is responding with "401 > Unauthenticated". > When I examined the log messages at Server, I understand that nonce is > expired. > > I would imagine that the 401 response contains a WWW-Authenticate header that contains a new nonce and perhaps a stale=true parameter.
> 4. Am I supposed to send second refresh without authentication information > sothat > Server respond with "401 Unauthenticated" ? > > Yes, you should include that last used authentication information, > 5. Do I have to pick the updated nonce from the "401 Unautheticated" > response and > construct refresh SUBSCRIBE with this new nonce ? > > when you receive a challenge with a new nonce, you build new authentication information. Then you send a new request, with incremented CSeq, with this new Authorization header. > 6. Is there any other standard based approach to keep my SUBSCRIPTION > active at > Server ? > > Not that I know of. -- Martin Larochelle Software Developer Macadamian Technologies martin AT macadamian.com (613) 739-5976 ext.149 www.macadamian.com The information contained in this email is intended by Macadamian Technologies Inc. for the use by the named individual or entity to which it is addressed and may contain information that is privileged or confidential. It is not intended for transmission to, or receipt by, any individual or entity other than the named addressee expressly permitted in this email. If you have received this email in error, please delete it without copying or forwarding it, and notify the sender. _______________________________________________ Sip-implementors mailing list [email protected] https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
