GSM to RJ11 adapter Specifications Feedback Voltage: 48V DC, 25mA minimum Ringing Voltage: 90V 25Hz dialing tone frequency: 450Hz Power supply: 110/ 220VAC, 50/60Hz Advantages YX-900 adapater is designed for those applications which the public telephony network is difficult to reach. It can convert the GSM sinals to DTMF/FSK signals. The output interface is a standard RJ11 port. Functions description 1. Comply with 900/1800 850/1900MHz GSM network; 2. Just connecte this unit to a touch-tone telephone (without the connection to a wall phone outlet) , the telephone will be normally used; 3. can receive all phone calls from different telephony networks; 4. Automatically identify the calling in signal and feedback; 5. Built-in dialer, can be programmed to choose the certain routing path; 6. Caller ID display function included; 7. Fully signal tone functions |