Technical data Ring density: ≥85dB Contact of Relay box: 220VAC/2A or 24VDC/ 3A Maximum line capacity: 24 lines Power supply (optional): 24VDC +/- 0.3A
Features
● Loud and clear with no external power
● Press key to call
● Flashing light signalling unit
● Headset telephone with anti-noise funtion