Is it Possible?

Hey,

   I wanted to know about the feasibility for my final year project.Your answer could be as simple as 'YES POSSIBLE' or 'NOT POSSIBLE' . here is my final year project idea,

     Install asterisk on linux box.Connect asterisk to my university exchange.Connect wifi router to the linux box. Develop iPhone application which will connect to asterisk via wifi router and run using that application i am able to call local university extensions. 

        So is it possible????

‘YES POSSIBLE’

Take a look at the existing SIP clients for iPhone before you decide to write one.

Why not just find a NAT/Firewall WiFi router supported by any open-source firmware, i.e. OpenWRT, and have your asterisk PBX system hosted on the router?