Hi, I am working on a presence client and using SER as presence server. I am using PUBLISH to publish my presence status (i.e. online, offline, away etc.) to the sever, and using SUBSCRIBE, NOTIFY to know the status of the UAs in my friend's list.
Now my problem is what if my UA is turned off and unable to send PUBLISH to update its presence status. is there any way to get rid of this problem. one way I can think of is that Server will check for the registration status of that UA and on registration expiration it will automatically change the presence status to offline, but what if registration period is too long, its presence status will be kept like orphan on the proxy. second way is that UA itself periodically update the status through PUBLISH but I don't know if any IETF standard defines or recommends this and if such rfc exists then Does SER (Proxy) supports it or not? Please share any opinion. Thanks & Regards Nitin Arora _______________________________________________ Sip-implementors mailing list [email protected] https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
