Universal door-entry phone, compatible with most of the door-entry phones produced by leading international manufacturers. Ideal in door-entry phone system replacements and repairs. Speech button on base unit, call volume adjustment and privacy function. Features a lock-release button and an extra button for additional services with independent common. Features loudspeaker volume control and microphone volume control to meet all possible requirements, can be used for systems with positive common or systems with negative common, can replace door-entry phones with condenser microphone and carbon capsule, features electronic calling or mechanical calling by means of a buzzer. Supplementary buttons or LEDs cannot be added for this model. Dimensions: 95x215x58 mm.
