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.
4. Am I supposed to send second refresh without authentication information
sothat
Server respond with "401 Unauthenticated" ?
5. Do I have to pick the updated nonce from the "401 Unautheticated"
response and
construct refresh SUBSCRIBE with this new nonce ?
6. Is there any other standard based approach to keep my SUBSCRIPTION
active at
Server ?
thanks in advance.
with regards,
_ramesh.
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