[OpenSIPS-Users] OpenSIPS & Apple Push Notifications Service

[Adrian Georgescu]

Hello Paul,

What you describe is too convoluted to be implemented the way you described it in the Proxy alone, if possible at all. You would need to park the call somewhere on some intermediate B2BUA, wake up the device, know when this happened and then start a new call to it when is reachable.

There is a simpler way to solve this using the native capabilities of iOS 4. The SIP UA should register using TCP to the SIP Proxy, if you do this the whole magic is automatically handled by the iOS 4 wake-up from background capability. For UDP transport this magic does not work.

Adrian

On Sep 30, 2010, at 8:56 AM, Paul Wise wrote:

> Hi all,
> 
> We would like to implement support in our server for Apple's Push
> Notifications Service (APNS). The way this will work is that when a call
> comes into OpenSIPS for one user (from another user or another domain)
> and that user is not registered/online, we wake up (or launch) our SIP
> app on the user's iPhone by sending a push notification to Apple, who
> forward the notification to the user's iPhone. Our SIP app then starts
> up, registers to OpenSIPS and receives the call/text. Most of this is
> easy, some quick perl functions to generate APNS packets in OpenSIPS,
> socat to connect to Apple and forward the packets, monit to keep socat
> running, cron+socat to download feedback information for when people
> uninstall our SIP iPhone app, msilo for storing MESSAGE requests before.
> 
> The part that I haven't be able to figure out how to do yet is how to
> connect the incoming call to a user when they have registered.
> 
> I thought maybe direct the call initially to an asterisk media server
> (for a ringing tone), wait for a timeout, check if the user is now
> online and if so connect them. Then rinse and repeat. This seems a bit
> hacky, I'd prefer for the REGISTER handling to immediately direct the
> call to the right contact to reduce unnecessary delays.
> 
> Has any one done this before or have any ideas for implementation?
> 
> -- 
> bye,
> pabs
> 
> http://bonedaddy.net/pabs3/
> _______________________________________________
> Users mailing list
> Users at lists.opensips.org
> http://lists.opensips.org/cgi-bin/mailman/listinfo/users