自动拨打电话KNZD-03液晶

模拟 网络电话 SIP

免提电话是基于不锈钢面板和提供一个清晰的免提，大声的操作，任何公共区域。嵌入式应急免提公用电话，采用坚固的金属机身制造。手提式电话坚固耐用。特殊密封设计，确保完全防水。耐风雨、防尘、防潮。免提电话广泛应用于银行和机场。这些电话以高标准制造，提高了对破坏的抵抗力，并确保通信的主要功能在任何时候都能得到维护。1.2.主体采用全不锈钢结构，坚固耐用，耐高温。无手机，扬声器，3。恢复雷电保护自动标准的ITU-T K21 4。 Waterproof grade is IP65(can improve to IP67) 5. The metal shell is provided with grounding connection device and is absolutely insulated with inner circuit and electric , then has the effect of electromagnetism shield. 6. Support hotline call, can realize ring off automatically if the other side close. 7. Totally adopt SMTC craftwork keep very good quality. 8. The design is super thin and smart. Embed style and hanging style can be chosen. 9. Every call is limited(set by five minutes), auto ring off if time exceeded. (Optional) 10.The telephone has passed the certificate of ISO9000(2000) Applications: As Public telephone for indoor or outdoor, elevator phone, Taxi or bus stands or station, Highway call box. Railway, metro, ATM machines side, Tunnel, Port, Dock, Mines, Generation facilities…. A good ideal telephone for use in wet or corrosive atmospheres