I am learning very quickly...LOL. Metro PCS does not have a 3G network at this point, so at most times, the phone will be reading 1x. When using data, as far as the phone is concerned, in my case, this is the LG Optimus M, data prevails. The call will immediately be routed to VM if I am using data of any kind. I have yet to find a fix for this where the call would take priority. This may be the answer to your issues. Also, if you are using a phone with wi-fi connectivity, when using the wi-fi you can use both voice and data simulataneously. Can't wait for metro to expand there 4G so that all areas become 3G when the phone is not 4G enabled.