1. 4 phone+ 4 wireless, max connect to 16 lines 2. Save 20000 pcs. Call list when power cut 3. Connect to PC through serial port to charge, statisti ...
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1. 1 phone + 1 wireless 2. SMS NMS 3. Polarity reverse signal 4. 9 LED: Power, Run, Charge, Phone, Battery, Register and 3 signal(3 level) 5. Ty ...
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1. 1 Phone + 1 wireless +1 PSTN 2. Routing based on number table and percentage when simultaneity connect wire and wireless 3. Bypass feature when ...
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