with cingular/nextel/tmobile if you still actually have a tdma handset, this would work, but most of the customers are on the GSM network as it is, and no manual programming is required it's all OTA...so if you're phone has a sim card, wouldn't even bother trying, save yourself the embarrassment of calling in and finding out otherwise.:)
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with cingular/nextel/tmobile if you still actually have a tdma handset, this would work, but most of the customers are on the GSM network as it is, and no manual programming is required it's all OTA...so if you're phone has a sim card, wouldn't even bother trying, save yourself the embarrassment of calling in and finding out otherwise. :)