Want Old Iphone 3g to work without a data plan on AT&T

[Darkstar]

OK, here's the deal, I want to buy the new Iphone 4 to replace my 3g,  I plan to used the 4 on my existing number and data plan,  my wife currently has a non-data AT&T phone.  I wanted to give her my old 3g to use for a voice phone and use Wifi when available (not to mention the neat apps that are already installed)  Here's the rub, AT&T tells me I will need to get a data plan (even though her phone is not under contract) because ALL IPHONES require a data plan.   They said if I were to take the sim card out of her phone and install it into the old 3g they would immediately recognize it as an Iphone an automatically bill me for a data plan.

My 3g was jailbroken on spirit for 3.1.3, I should have the new 4 in a few weeks so I have some time to figure this all out.

Any and all suggestions are welcome as well as some basic steps or instructions.

Thanks and my apologies if this is listed already someware else on the site!

[Darkstar]

Hello??? I was told this site is where all the Iphone experts hang out,  Anybody home?

[zxmacman]

Hey Darkstar! I would like to love see someone answer as well. I have an old iPhone 2G I would like to do the same thing with.

zxmacman

[Darkstar]

Hey Darkstar! I would like to love see someone answer as well. I have an old iPhone 2G I would like to do the same thing with.

zxmacman

Yeah, me too,  I must say I am a little dissappointed.   This site was suggested to me as the place to go for the answers, I guess not.  This would be an easy answer to true Iphone experts.  Oh well.... 

[Darkstar]

Finally found a site with some good info on doing this:

http://www.iphonedownloadblog.com/2008/10/11/using-an-iphone-without-the-data-plan/

 

[yessi0715]

I'm new to this whole APN thing so I have no idea what it is or how it works. I've bee browsing this site for about the last 3 hours because I'm trying to find out how to block AT&T from seeing that I have an iPhone, therefore stopping them from charging me the monthly data plan that I can't afford to pay. I would really appreciate it if someone would explain to me what exactly a Fake APN, and a Custom APN is and what they do because I have no idea, honestly. I've seen people talking about MMS, does that mean that I can get free text-messaging? I'm so confused! HELP!!