I am a AT&T customer and my cousin gave me his curve but its from T-Mobile. First i know I have to unlock it, but i was wondering if any features will be crippled by the switch?

I tried searching but nothing hit my topic. This is my first time having a blackberry so please help. Never used a blackberry before. Any help would be appriciated.

Welcome to BB Forums - there are a couple of threads on this, including this one - T-Mobile Curve on AT&T Wi-Fi

In short, WiFi will work fine, except AT&T does not support UMA, or the voice over WiFi functionality. I am not aware of them "crippling" anything.

You use your own imagine the 8320 look like the 8820 has wifi. its not support UMA in anyway. If you switched it , NO UMA only. the ONLY WIFI would be run on 8320, will be fine. ;)

I don't know that you'd necessarily consider it "crippled" but I do not think anyone has successfully gotten MMS to work on a T-Mo 8320 used on AT&Ts network.
Some issue with the service book for MMS not being delivered.

hmm thanks for the replies you guys it really helped. i only really use my phone for calls and txting due to work and such. I dont really use the MMS feature.

however i do want to utilize the internet connectivity. However when i asked several Cingular/AT&T reps, they say i cant use the internet on a t-mobile unlocked curve. I was told by one rep that i can find someone to reset/reformat my curve so that it CAN use cingular's internet. Anybody know anything about this? or does anyone know any websites that can unlock this internet feature for me? Any help would be grateful.

A blunt answer: The rep that you spoke to was not correct. Took all my self control to not say what he is full of. He is wrong. He should not be giving advice about BlackBerrys (except, of course, he was trying to see you one).

You do not need to reset or reformat the BB.

You will need a BlackBerry Data Plan on your SIM Card to get full Internet and e-mail access.

hmm but then i dont need the push email function and just need the internet access. The BB Data Plan has no use for me as its just a personal phone. As long as i can get onto the internet im fine with that. Coming over from a Nokia N80, im fine with just accessing the internet manually. But with T-Mobile's programming, I'm being told all over my ass about not being able to access the internet b/c of company specs within the phone.

As of right now, I have an UNLOCKED Blackberry 8230 Curve from T-Mobile. I will be using the phone with cingular/at&t and just need the internet access. If I just add on the MEDIANET bundle, will i be able to access the internet through that? This is my first time ever switching to a blackberry.

Since you don't (apparently) believe me, I will let others reply.

No BB dataplan - NO Internet and no email. Some have gotten Opera Mini to work,but it isn't an easy set up and appears to be hit or miss as well. And you will most likely be charged for data so expect a high data bill.

lol no its not that i dont believe you. I believe that if i add the bb data plan i will get what i been looking for. But my problem is that i dont want to spend an extra $29-$39 a month just for the service

Oh, if you want partial and limited internet, and what AT&T has to offer, their media net plan will give you just that.

But as NJ stated, it will not be full access.

I have a BB 8320 working on ATT network without the BB dataplan or ATT Media Net Plan and almost everything works even the Wifi. As long as you have access to a wifi connection, your WiFi will work. The only problem I have is sending and recieving MMS.

Trusting any at&t rep without corroborating is a mistake that people new to at&t tend to make. It's pretty common for at&t reps to be wrong. If you have a BB question, rely on this forum for information.

you can use any network's OS software to use under your carrier. as long as the phone is unlocked and your SIM card is active, it is possible. EVERYTHING wil work just fine except the unique features of carriers such as UMA for T-Mobile or PTT from AT&T. You can also use the internet without a blackberry plan, but you'll be limited to what you can do and charged per kb transfered i.e. t-zones from t-mobile or any other generic inernet service. GET THE BIS if you want web.

On a side note: Carrier reps, wether customer service or sales, will never disclose any information regarding unlocked devices from other carriers (a.) most are uninformed, b. its sales business of course they want you to use theirs). At the minimun, they'll talk you into purchasing their branded devices.

hope that helps.

I'm new here but have had my 8320 for about 4 months on Tmobile. I'm thinking about moving over to ATT due to UMA and coverage issues. From this thread, I get the sense that it is possible to use WIFI on ATT but I will be charged for data even on my own WIFI network?

I don't need the email push, just the occasional GMAIL and google maps and internet using OPERA mini and am always in a WIFI enabled environment so I don't need the BB unlimited data plan. Or any data plan for that matter. Thanks in advance for any help!

I just made the switch.
My 8320 works fine with AT&T.
The cost is about thirty bucks a month more.
But I finally have a signal.
Not to mention AT&T's EDGE is a fair bit faster than T-Mobile's.

One thing I should mention is T-Mobile will take FOREVER to switch off your email so you won't be able to register an AT&T email untill T-Mobile deletes your PIN out of their system.

I should mention that T-Mobile will take FOREVER to delete you PIN.
This means you'll be stuck with a T-Mobile email address untill they do.

We also have MMS issues with unlocked TMo 8320s here in the Philippines.

WiFi with my understanding is FREE, just a feature of the device. All you have to do is enable it on the device. The only downside with using an 8320 on AT&T is that AT&T does not have UMA, which is how Hotspots@Home work. Other than that, you should be able to surf the web etc... But in order to take full advantage of the blackberry, you should give BIS a shot, maybe for a month to see how you like it. ya know!?!?