The Fire Telephone will be designed to work on Railway, metro, tunnel, etc. Housed in robust metal sus304 die case with door, it will offer protection against the outdoor environment, vandals resistance and rot resistance.

The unit will meet all the latest European/UK standards for EMC and US FCC, telephony, waterproofing IP66, and lightening protection together with offering the level of performance and reliability demanded in such an environment.

Telephone features
1.  Robust metal sus304 body.  
2.  dustproof keypad flash mountsd. 
3.  Weather resistant to IP65 or IP66 standard, service temperature range from:-30℃ to +75℃
4.  Magnetic reed hook-switch 
5.  Telephone line powered. 
6.  Lightening protection to ITU-T recommendation K.21
7.  Handset: made of special engineering plastic, high anti-knock resistance, Weatherproof, armoured cable optional,    
8.  Hearing Aid compatible receiver, Noise canceling microphone.
9.  Auto off. When detect buzy tone , the phone will auto off to release line to avoid engage.  
10.  Selectable 7 minute time out, to release the line if the handset is left off hook.
11.  Vandal resistant and tamper-resistant hardware, 
12.  Easy installation/ replacement.
13.  Adjustable ringer and volume control optional.

Main PCB
Well treated PCB used inside the phone.
Robust screw terminals used for the connection of ringer, handset, line in, hookswitch. 
Selectable 7 minute time out, to release the line if the handset is left off hook.
All connectors be greased in production.