... 800, 450 or 1,900MHz CDMA Frequency, Two-way SMS, Voice Mail and Caller ID... Country of Origin:China (mainland)Brand Name ... billing shown in double LCDS, and having the function of checking the billing center for the year, the month, and the dates sum Supporting all frequencies of ... % Payphone with 800, 450 or 1,900MHz CDMA Frequency, Two-way SMS, Voice Mail and Caller ID