Can anyone tell me is it possible to Push to a device without relying on SMS. If for example I use WAP HTTP push over GPRS I think I would have to know the dynamic IP address of the phone, Is there a way to get this from the Radius server. I am currently polling a servlet over GPRS to check for any new information on a regular basis, but I am concerned about overheads and scalability doing this.
If I open a socket connection to the server, can I then listen for any new information or will this time out.