Titan not receiving calls - will new ROM help?

[daddytorgo]

posted this over on pdaphonehome forums too, but posting over here.

I have upgraded to the latest Sprint ROM and Radio and am still having this problem:

Question - I have been having a problem with my phone receiving calls. Sometimes my GF will call 5-6 times and my mogul won't ring, or even show missed calls. And then 2 minutes later I can call and it rings. There's no rhyme or reason to it, and it happens with too much frequency to be a network problem or be acceptable.

According to the folks at the Sprint store, they can't replicate the problem and my mogul has a clean bill of health from them (although the tech said if it keeps happening to keep having them note it and someday it will be a chronic problem and they'll replace it), but i'm wondering if flashing to a custom WM 6.1 ROM might help with this problem?