Recently i just bought a 3GS and use it with my CELCOM BIS.

However, i discover some issue to be discussed here:

1. Recently phone always get disconnected after few seconds and it take me to call many times before i can get through to reconnect thru voice call (someone told me that this is common issue for OS4, true?)

2. HOw to overcome that 3G network cant connect back automatically after disconnect due to voice call? while D and M are still connected always...

Any forumer have come across to these issue ?