Hope you all had some idea about what is Open-BTS now lets dig wats Asterisk all about, since we have to use the both OpenBTS and Asterisk, in order to create ur own gsm network now ill take u thro asterisk tutorial..
If u missed the OpenBTS article click here
OpenBTS
Asterisk is a software that helps u to connect from ur IP based Phone to wired connected land line networks and PSTN networks, via the VOIP service u may subscribed from any provider..
So hardware(OpenBTS + Astrisk is needed to create Networks Or To Tapping the calls)..Tapping calls made easier because Ur handsets not authenticating the Base station(Tower) when it registering...
