产品特点：
3.1 functional characteristicsThe host call extension, extension calls, unlockThe host can be extended to two keysEvery button can bring 4 extensionsThe first extension by four ring at the same time, can answer anyYou can swipe to unlock IC\IDThe extension of 4 inch and 7 inch optional
产品特点：
5.1 functional characteristicsWe use three line two line bus wiringThe host call extension, two-way communicationThe household can be set independently unlock passwordThe host capacity: 99 *4, 79 *8 39 *16 households, households, 51 households and 19 layer *20, layer *32, layer 9 *64 householdsYou can swipe to unlock IC/IDThe visual and non visual compatibilityThe 2 hosts share one extension, call, call, lock automatically switchThe 2 station may share a host machine, call, call, monitoring, automatic lock switchThe extension and host two-way communication, unlockingThe host and the host can direct digital sharing one extension
![IP digital network center machine]( "IP digital network center machine")
产品特点：
System function characteristic:1.1.1 management center machineThe call, call records, unlock records query queryThe elevator machine monitoring machine, manual switch monitor wallThe alarm information, alarm displayThe address setting, tone setting, system information, system restoreWe obtain weather information1.1.2 unit door hostThe management of call centerWe call householdsThe password lockThe IC card lockI photographed the visitorThe case of household extension is busy, start voice message function1.1.3 indoor extensionThe elevator machine and machine - building wall monitoring households, according to the switching switch between different ladder machine and fence machineThe elevator machine to achieve the call answering, can realize video intercom and lock functionThe direct call management center, for intercom, emergency situations can directly press the alarm button alarmInput number you can call any other cell users, for a callThe chronological record of recent memory calls, ...