Switching from 3G to 2G is usually the phone issue (unless you happen to be situated at the edge of where the 3G coverage ends).
Try leaving your phone on 3G only. It will cling on for its dear life, and is quite good. The 2.1GHz signal of the 3G isn't as good at building penetration as the 850MHz (2G, EDGE), but for the most part, it works quite well.
|