I thought that the Unihertz Titan Pocket would be the first choice, however, since ATT not only does not "Whitelist" it, their Tech. Support has told me that on their network it really won't work as well as an old EOL Blackberry, and according to the same source said that while Uniherz may be trying to work things out with AT&T, AT&T is not really trying to work things out with Uniherz, and may actually, in the not too distant future actually block the Titan Pocket, and perhaps the entire Uniherz series of phones, from its network. TMobile is a bit more flexible on this count, however,