i want to convert my android phone as sip voip gsm gateway like GOIP, DINSTAR.
android phone will register with my softswitch via 3g internet and when my softswitch will send call to android it will forward to gsm network. (VOIP CALL TERMINATION)
so it will work like DIALER(DIALS NUMBER)--> MY SOFTSWITCH --> ANDROID PHONE --> TO NUMBER DIALED BY DIALER....
This will be main future.. and it will work on codecs g711 g729 g723