... 800, 450 or 1,900MHz CDMA Frequency, Two-way SMS, Voice Mail and Caller ID... Country of Origin:China (mainland)Brand ... sum Supporting all frequencies of CDMA 800 or 1,900MHz Voice call Supporting incoming calls indicator Setting the local area code ... 800, 450 or 1,900MHz CDMA Frequency, Two-way SMS, Voice Mail and Caller ID