Originally Posted by
GUWonder
T-mobile's network is more spotty for me than ATT's network. The TMobile GBM SIM allowing for WIFI calling helps a lot in closing the gap with ATT's wider network. That is probably a window into why TMO is in more of a rush than ATT to have this.
Yes, I hear that is generally the case. In fact, I think I just happen to live in one of the only cities / areas of city where T-Mobile gets better reception than ATT.