Welcome to come Changsha SPON Communication Technology Co., Ltd.
ADD: Changsha,Hunan China
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With the application of the advanced IP Audio ™ technology, SPON IP network intercom system, a hands-free intercom system to transmit the pure digital data, send the audio signal data package via LAN and WAN, solve the traditional limitation on the transmission distance and the problem of being vulnerable to interference.
The public transportation is indispensable for us. However, have you ever thought about,for example, in the train station or on the subway,what can be done if we encounter serious problems or emergencies. SPON’s
railway station intercom system will do you a great favor.
with IP /analog phone etc.
(e.g., the car catches fire in the tunnel). SPON IP Intercom system expressway solution will do you a great favor.
intercom with IP phone/walkie-talkie and to link fire alarm system to broadcast siren tone to specific zone automatically.