T-Mobile Roaming Capability

U know on some phones like the samsumg t 309, when u go into the network settings and, it asked u, do u want to search for a network, and i did that and when it was done finding the networks in my area, a list pops u and it sais Cingular or T-Mobile, but when i click Cingular it says im not allowed to do that. But when u call up T-Mobile that say roaming is free and they admit to using other cariers towers, but when u try and roam u cant. Is it because of the quad band on the phone. Like what freqency gives u the ability to go on any gsm tower.

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It's not the frequency, it's the roaming agreement. In your area there is both Tmobile and Cingular. But tmobile doesn't offer cingular roaming in your area. As a matter of fact that is often the case when both networks are offered in one market.

I don't quite understand you post fully, but I think I know what you're saying.

If you're within limits of T-Mobile towers, you will be on the T network ONLY. If not, you will experience roaming from a number of people, not just Cingular. T-Mobile also has roaming that only works with 850 MHz phones. Long story short, if you're in the T-Mobile network, you have no choice but to use the T-Mobile network.

I have a quad band phone the Nokia 6133, that phone has all for band frequency 850,900,1800,1900, and it still does not work. T-Mobile says roaming is free but when u try to go on a different tower you are denied.

Originally Posted by Connex

I have a quad band phone the Nokia 6133, that phone has all for band frequency 850,900,1800,1900, and it still does not work. T-Mobile says roaming is free but when u try to go on a different tower you are denied.

That's because they won't if you're in limits of T-mobile towers.

Why do you so desperately need to use a Cingular tower if you're getting service from a T-Mobile tower?