模拟工业电话KNZD-09A SC5

网络电话 3 g 无线

高速公路呼叫箱KNZD-09A SC5由冷轧钢材料制成。防风雨的公路电话亭坚固耐用。特殊密封设计，完全防水等级可达IP66应急通信。太阳能高速公路应急电话亭作为911电话亭，为高速公路提供援助。在路边应用中，电话亭的最佳选择是VOIP电话或gsm电话。VoIP电话亭利用IP网络进行语音通信，在高速公路应急通信管理中有很大的优势。特点:1。GSMtelephone. 2.Metal body, solid and temperaturebearable. 3.Handset free, 3W loudspeaker. 4.Heavy duty vandal resistantbuttons. 5.With or without keypad optional. 6.Waterproof grade aboutIP66. 7.Body with grounding connection protection. 8.Support hotline call, stop if the other side hangup. 9.Built-in loud speaker, noise canceling microphone. 10.Lighting will flash when there is an incoming call. 11.Built-in rechargeable battery with solar powered panel. 12.Anti-tamper antenna prevent the destruction of the antenna by external force majeure. 13.Time out function optional. 14.Color: Yellowor OEM. 15.Temper-proofbody 16.Special alarm message by SMS function if: *Push button not wok *Low battery *Low GSM signal *Door opened *SMS recipient number *Hot line number