Low cost intelligent intercom with electronic call tone (3 level volume), "door open" and "service" push buttons plus privacy "ON-OFF" switch.
Low cost intelligent intercom with electronic call tone (3 level volume), "door open" and "service" push buttons plus privacy "ON-OFF" switch (mute call). The Local bell input requires an additional wire. It cannot be used in combination with all the other devices that can be connected directly to the bus like the digital concierge Art.2210, the isolation board Art.2204, the additional sounder/relay etc.