iPhone with A&T Data+T-Mobile Voice: Possible?

[ruslan120]

Hello! I was wondering if it would be plausible to have this AT&T plan:
Get Started - Wireless from AT&T
and a T-Mobile voice plan. Would an iPhone work on the AT&T Smartphone Data-only plan? That's my main question lol, the other is would a dual sim adapter work with a 3.1.2 iPhone 3GS? I have a T-Mobile Voice plan right now, with my parents for $100 and a full 450, unlimited sms, unlimited data iPhone plan with AT&T for $105 a month. I'd like to save and just get voice on T-Mobile and data on AT&T, and use Google Voice for texting/calling on the two. Thanks!

Also, would it be possible to receive calls on a VOIP, data-only plan?

[fastwanabe]

Hello! I was wondering if it would be plausible to have this AT&T plan:
Get Started - Wireless from AT&T
and a T-Mobile voice plan. Would an iPhone work on the AT&T Smartphone Data-only plan? That's my main question lol, the other is would a dual sim adapter work with a 3.1.2 iPhone 3GS? I have a T-Mobile Voice plan right now, with my parents for $100 and a full 450, unlimited sms, unlimited data iPhone plan with AT&T for $105 a month. I'd like to save and just get voice on T-Mobile and data on AT&T, and use Google Voice for texting/calling on the two. Thanks!

Also, would it be possible to receive calls on a VOIP, data-only plan?

Apparently you do not know a single iota how the whole cell phone world works. To answer your question.... A big fat NO. It's one or the other no carrier offers only data unless it's an air card. Voip would be perfect but it's just unrealiable. I use Fring and it works correctly 4 out of 10 times... Not good.

[ruslan120]

I actually understand how the "whole cell phone world" works pretty well, please read carefully, I said using a dual sim adapter. And apparently AT&T offers data-only, did you bother to read the link?

[vov4ik_il]

Hi Ruslan,

This is about hardware. iPhone (all of them) has only one active tranciever, and therefore, only one sim can be used at a time.

You can try dual sim adapter or a multisim solution (you will have to define APN for AT&T so while browsing you will be using their settings) but even if it works you will be missing voice calls while browsing and vice-versa becasue all these solutions only give you the option to swap sim without taking it out of the phone.

Cheers,
Vladimir

[onlyoneromeo]

tmobile offers a data only plan for a dollar a day for the sidekick . if it were possible it would be data with tmobile and voice with att... until t hey create a phone with two active sim cards that work at the same time that aint happening...