If the server supports configurable redirects when a user is off-line, then you may register with the server as the redirect recipient. This way, you will get a handle on the calls that are coming in for a particular off-line ua. You can simply either reject the call with a 4xx or play media acting as an announcement server. Your next requirement would be to check whether the server supports reg-event package (RFC 3680). If it does, then you can simply send a subscribe to the registration event of a particular ua to get notified when the ua goes back on-line. The rest may be accomplished via proprietary MESSAGE or unsolicited NOTIFY exchange to notify the user of the missed calls while it is off-line. IMHO, MWI is still the best standard approach to indicate to the user that it missed some calls while off-line. Joegen Angelica Grace Tanchico wrote: > Hello, > > I am planning to include notification/alert when an offline client > receives a call. > I think this is useful like when a client was disconnected (or the > client application > is just not running) and somebody tries to call him, receiving a > notification right > after the client became online again (or the client app restarted and > running ok), > I think is a nice feature. > > I am having difficult time figuring out how to do this since I don't > have control with > the SIP servers the clients register to. I would like to hear some > useful inputs on > how I can include tis feature. > > Thanks in advance! > > > Regards, > Gie > ------------------------------------------------------------------------ > New Windows 7: Find the right PC for you. Learn more. > <http://windows.microsoft.com/shop> > ------------------------------------------------------------------------ > > _______________________________________________ > Visit our blog: http://blog.pjsip.org > > pjsip mailing list > pjsip at lists.pjsip.org > http://lists.pjsip.org/mailman/listinfo/pjsip_lists.pjsip.org >
