Electronic Push Button Telephone - High Impact Plastic Housing, Adjustable Ringer Output 65db To 85db | Compact Design, Easy Push Button Dialing, User-friendly Dialing Mode

Features: - Compact & elegant design. - Push button dialing for easy operation. - Electronic ringer with variable ringing sound for pleasing audio effect. - Automatic gain control to compensate for speech volume reduction ones long lines. - Electronically controlled out pulsing/ DTMF frequencies for reliable operation. - User selectable, user friendly dialing more operation. (Tone/ Pulse mode) - Flash and Redial facility for quick and easy dialing. - Suitable for all type of exchanges/ EPABX. - Protected against EMI/ Radio frequency. Specification Transmission Performance: SRE - At zero line, not louder than +3db. At Limiting line, not greater than +10.5dB. RRE- At zero line, not louder than -1dB. At Limiting line, not greater than +2.5dB. Ringer output: 65dB to 85dB adjustable. Housing: High Impact strength engineering plastic. Operating Temperature: -10oC to 55oC at 95% RH. Environmental condition: Resistance to Vibration, Shock & Corrosion. Current Consumption: <60m Amps. Speech Transducers: Electro dynamic receiver and condenser microphone transmitter. Keypad configuration: (4x3) + 2 Dialing: DTMF or Decadic Application Used for communicating Voice signal between subscribers.