IP elevator five-way intercom communication based on SIP

1, The community generally has a lot of brands of elevator types, generally divided into two or four line system of Deling and Otis, and Mitsubishi's three line system. Beijing Ruiguang Yuanyuan provides these categories of five-party intercom SIP gateway, so that the elevator five-party intercom can be connected to the SIP softswitch system, unified transmission to the center.
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2, SIP softswitch system can be transmitted through the Internet, so that the fire center can manage a larger area, but also conducive to the monitoring department for unified monitoring. Far beyond the original twisted pair transmission range.
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3, in the center of the software platform can be convenient to mark each elevator, can be bound to the car surveillance camera, can automatically call the car camera for audio and video calls when the alarm. It is also easy to transfer phone calls, multi-party meetings, audio and video recording.
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4, when the car alarm, the central end of the 3 rings no answer, will give the corresponding responsible person's mobile phone mass SMS, and can transfer the call to the mobile phone of the staff on duty

Key equipment:
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1, Mitsubishi elevator simulation five-way intercom SIP gateway;
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2, Otis elevator two-line/four-line five-party intercom SIP gateway
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3, USB-4G LTE telephone alarm gateway
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4, USB desktop intercom microphone
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5, IDM MCC600 office end elevator five-way intercom center (including softswitch scheduling server)
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IP elevator five-party intercom,SIP five-party intercom,VOIP five-party intercom, fiber elevator five-party intercom, network elevator five-party intercom, five-party intercom SIP gateway以上翻译结果来自有道神经网络翻译（YNMT）· 通用场景