I called an AT&T guy today (thinking ahead to the Bold) and asked about BB WiFi features - I told him as I understand it, I can seamlessly transition between a WiFi signal & a cell band signal for both data & voice.

Yes to data, he said, but no to voice. He said to get that to happen for voice, I would need a third-party application on an unlocked phone because AT&T will block it.

My current BB is an 8110 (no WiFi) so this isn't urgent - and as I understand it, the WiFi in the Bold isn't UMA - so my question is:

What can I do, if anything, to get that seamless transition on AT&T? Is there some short list of third-party applications that can handle that?

(If not, no sweat; I'll be happy just to get faster data traffic with 0-1.5 bars here).

Lacking that, is anybody offering any kind of reasonable femtocell device on AT&T?

FYI, I have to finish mounting a directional antenna for my Wi-Ex signal booster - an uphill battle with all the trees around here because they attenuate PCS-band signals pretty significantly - but still a bar or two of boost - and if I can parlay enough of that, I can get a little extra signal in play before the Bold gets here.

Any ideas, gang?