Thanks for your reply.
During testting what I found that when I initiate a data call from wavecom module ( q2686) and at receiver end I have connected mobile having data enabled sim card connected to pc using serial port, the receiver end gives CONNECT 9600 response immediately means within 1 sec. but wavecom module takes much time to near about 12 to 14 sec.
I also found that if i tried data call using two mobile of i.e. at transmitter and receiver side, I got connect 9600 response within 2 to 3 sec on both side. It saves lot of connection time and improves battery life too.
So if this is possible if mobile used as a modem than can wavecom module not work like this?.
Thanks and Regards