Sell Audio indoor phone

Audio indoor phone You May Also Be Interested In: audio phone
7Basic Functions
7Editing room number;
7Hands-free system;
7Calling, communication, door releasing,
monitoring (MT) ;
7Emergency call and 4 burglar alarm monitoring
stations (SAM) .

7Extension Functions
7Color vision (C) ;
7B/W vision (B) ;
7Using password to set and withdraw alarm (D) ;