T-mobile roam at&t

[drago10029]

So I have an iphone 3G 3.1.2, blacksnow jailbreak and ultrasnow unlocked.

I have service with t-mobile and found out t-mobile nationwide plans have free roaming but when I select at&t service from carriers list the phone shows up as "no service"

So I just want to know how I can get the no service gone and get it to go onto at&t network.

note: I do have t-mobile service no problems but I just wanted to test the at&t free roaming thing too.

[vimm]

So I have an iphone 3G 3.1.2, blacksnow jailbreak and ultrasnow unlocked.

I have service with t-mobile and found out t-mobile nationwide plans have free roaming but when I select at&t service from carriers list the phone shows up as "no service"

So I just want to know how I can get the no service gone and get it to go onto at&t network.

note: I do have t-mobile service no problems but I just wanted to test the at&t free roaming thing too.

i be live because you still t mobile Sim card in the phone.you cannot have t mobile service and try to use at&t data,it won't work.

[GenesisDH]

In most places AT&T and T-Mobile don't allow in-market roaming if they have a large amount of native coverage in said area. That's the case in most metros now.

I've been able to roam on AT&T on highways/county roads and some rural towns (where AT&T bought up the local carrier), but I lose it when I hit the outskirts of a decently sized city.

YMMV, but don't expect to get on AT&T (much less any AT&T 3G-capable areas) without using an AT&T SIM.

[corkey20000]

Yes, even if you are in an area where T-Mobile drops coverage, but AT&T is readily available, this does not mean you are entitled to connecting. As stated, when you are out of a populated area and T-Mobile coverage gets low, it will hopefully hop onto AT&T, it just depends mainly on the area and if T-Mobile has a partnership to roam there. Even in the town I live in which has T-Mobile coverage everywhere, I sometimes see AT&T pop up with 1 bar, then it will drop and go back to full bars with T-Mobile.

[drago10029]

this is really good info thanks!

btw, how do you find out about this anyway?

[mechanicgjr8156]

Will T-mobile 3G service able to support the Unlocked Apple Iphone including Edge in the future or next year?

[codester3388]

Will T-mobile 3G service able to support the Unlocked Apple Iphone including Edge in the future or next year?

All currently available iPhones will never support T-Mobile 3G. Its physically impossible due to the radio frequency not available inside the phone itself. Has nothing to do with T-Mobile not allowing it.

[cybereclipse]

i experienced this today while near the grand canyon in arizona, no tmobile service in the area and my iphone hopped onto the AT&T network there with 2 bars and i enabled 3G and that worked too :P

but as soon as i got back into a city area, it went straight back to T-Mobile Edge with 4 bars

[corkey20000]

Wait. You can use 3G while roaming??? Did i just get trolled?

[GenesisDH]

There used to be reports of getting 3G while roaming, but most reports died shortly before the 3G iPhone was announced.

[cybereclipse]

Wait. You can use 3G while roaming??? Did i just get trolled?

nope, when i roamed on ATT, i got 3G
it was short lived tho, tmobile service took over once i got out the the canyon