I experienced this for the first time this weekend while traveling in PA out in the middle of nowhere. It is extremely annoying. My wife has the same phone with a stock ROM and was not having the problem.
Fortunately for me, I am not in an area where I can test a solution. There was some indication in other threads that changing the network selection had an effect on the problem. To that end I created a CAB to enable all network setting in the CDMA configuration screen (see below).
Settings Ã* Personal Ã* Phone Ã* CDMA Settings
If someone wants to take it and test out the various selections, you can PM me with your findings. If it does not help, I can keep looking.
BTW: Standard is the settings on the STOCK ROM, so I am only hopeful that this will ease the pain, but the true solution has to be somewhere else.
Thanks are appreciated...