监狱的电话KNZD-10

模拟 网络电话 SIP

监狱电话KNZD-10监狱电话采用304不锈钢材料,看起来坚固,抗风性和耐蚀性。嵌入式安装方法,使用防拆螺丝,安装后稳定可靠。是沟通的监狱系统调用的最佳选择。描述项目1。不锈钢304身体为安装方便。2。防水等级IP55防尘。3所示。全键盘与记忆,10个按钮可编程的电话。4所示。不受天气影响的IP55标准、服务范围从-30度到+ 75度的温度。 5. Lightening protection to ITU-T recommendation K.21. 6. Heavy Duty handset with hearing Aid compatible receiver, Noise canceling microphone. 7. Handset with industrial strong armored cord . 8. Metal keypad keep waterproof and dusty proof. 9.Phone integrity wiring to enable the telephone system to check if the telephone unit is still Operational.(If PABX have this available we can provide this function). 10. Optional 7 minute time out to release the line if the handset is left off hook. This function upon buyer’s requirement). 11. The housing covered with a layer of reflective label for easy identification at night.Optional 12. Application: Tunnel, metro, railway, LRT, speedway, marine, ship,offshore, mine, power plant, bridge etc.