AT&T GoPhone SIM Compatibility Issues

[akraus88]

Originally Posted by Roti2000

Interesting, Bossman & akraus -- So the places where I CAN get AT&T coverage with this ostensibly Quad Band phone means that it is picking up the signal on GSM-1900?

It will be interesting to see what happens in Mexico--if wikipedia is to believed, Telcel uses 850 for 3g and hasn't rolled it out yet in the area where I'm headed.

So, theoretically, I guess, it should connect via GSM-1900.

Does anyone have any leads on reliable dual-sim quad-bands? I may try and do an exchange/return with focalprice.com if i have bad luck in Mexico.

I travel down there a lot, and many of the places I normally go around Mexico City are in Telcel 3g territory.

In Mexico the 1900 band will work great. 3g is a newer techbology, so wherever the have 850-3g, they have 1900-2g.

Side note: you cannot call with the att SIM in Mexico to any place other than US/Canada/Mexico.