On my Micromax A70, when I set network mode to "GSM Only", I am not able to receive calls or dial-out. It constantly gives "Network Busy" message.
It works when I set it to "GSM/WCDMA Preferred", but gives same "Network Busy" message intermittently. Because of this problem I am missing some of my important calls.
The same SIM card works perfect with my Nokia phone in both GSM and UMTS mode without any glitch.
Any help to resolve this would be highly appreciated.
Thanks in advance.
It works when I set it to "GSM/WCDMA Preferred", but gives same "Network Busy" message intermittently. Because of this problem I am missing some of my important calls.
The same SIM card works perfect with my Nokia phone in both GSM and UMTS mode without any glitch.
Any help to resolve this would be highly appreciated.
Thanks in advance.

). if the network still dont gets connected, just reboot. everything should be fine. I had the same issue after the 3g activation and this saved my 2g back.
