Hi Steve, Seems all the phones that can have voice guided software stuff put on them (i.e. Mobile Accessibility, Talx, etc.) are GSM phones. Verizon Wireless uses CDMA. T-Mobile is all GSM. AT&T Wireless is at least partially GSM, as is some of Cingular. Unfortunately, Verizon seems to have the most coverage. -- Buddy Brannan, KB5ELV/3 | But I will lay my burden Email: davros at ycardz.com | in the cradle of your grace, ICQ: 36621210 | And the shining beaches of your love, http://www.ycardz.com | and the sea of your embrace.--Dave Carter