[Freeswitch-users] How to call a person on the same network.

Hi All, My aim is to call a person who's ip address is x.x.x.x. My ip address is y.y.y.y. What i tried was: Run the freeswitch on m/c having ips x.x.x.x and y.y.y.y. In both the freeswitch instance, i have loaded the mod_portaudio and mod_spidermonkey. Now i used commands from x.x.x.x freeswitch console: 1) pa call sip:SIP_URI@y.y.y.y. 2) pa call sip:y.y.y.y. And in both the cases i was unsuccessfull in calling y.y.y.y from x.x.x.x. Basically i was thinking that extension SIP_URI in default.xml will work with ip addresses only. In my scenario, x.x.x.x and y.y.y.y are on the same network. Please suggest. Thanks and Regards