... of the operator information, caller ID, signal strength, battery status, time and date. 13. GPRS (optional).14. Support FSK/DTMF, call waiting ... network searching, quick response for dialing, high voice resolution quality and harmless low radiation. 3. Adaptive to wide range of ... Asia, South Asia, the Middle East, South America, and Central America, and now we produce 200,000 sets per month. With ...