[CountryDevil]

No fix. It has to do with 1X data but not necessarly a roaming issue. Here is the deal, when in a 1x area only (No EVDO available) the phone uses the 1x network for both data and voice. If your phone has an active (not idol) data session going on and actively receiving data on your phone, it can not receive the voice call since the channel is already busy.

However with EVDO your phone uses 1x for voice and EVDO for data. So there are actually two channels opened up that you phone is currently using.

I had the same issue since I am pretty much in a roam only area where I live. The best thing I can suggest for you is not to use data on the phone while roaming.

Another thing that you can try is look at your phone settings and make sure the your DDTM setting is set to "off" This will allow all voice calls to take priority over data. Data will take priority if it is "on"