Fire telephone including fire telephone jack socket and fire telephone mobile handset. The fire telephone is suitable for hotels, restaurants, office buildings, teach buildings, banks, warehouses, libraries, computer rooms and switching rooms.
1. Non-polarized two-wire for supply and talk, cost effective for wiring.
2. Static power consumption is tiny.
3. Using electronic addressing.
4. The telephone line output port has the feature of open and short circuits checking
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