Hi

I'm using presence on Kamailio 4.0.3. I have in the cfg file: modparam("presence", "timeout_rm_subs", 0) to cope with unreliable networks. I have tried setting it to 1, but I saw sometimes server and client got out of sync, i.e. server removed active_watcher entries when NOTIFYs time out, while clients still thought the SUBSCRIBE dialogs are alive.

Now I have a problem when client re-registers with different local IP/port (e.g. changing between wifi and ethernet, or simply crashed and rebooted), and sends new REGISTER and SUBSCRIBEs using the new local IP/port. In this case Kamailio still sends NOTIFYs to the old registered IP:port (as well as to the new one). NOTIFYs to old IP:port last until expiration it seems. Even though the stale location has been removed from the location table.

I have a DB trigger to "SET expires=UNIX_TIMESTAMP()" to the corresponding active_watchers entries as well, when contact is removed from location table.

So the DB tables have been updated to contain only entries with client's new IP:port, but it seems that the SUBSCRIBE dialogs are kept in the memory until expiration, even though they have been expired in the active_watchers table.

My question is: is there any ways that I can stop all the NOTIFY messages from being sent to the stale locations, i.e. remove these SUBSCRIBE dialogs from memory?

Thank you! Yufei -- Yufei Tao Red Embedded

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