This is a commercial-grade professionally refurbished desktop phone, auto dials pre-programmed number (e.g. 911) when handset is lifted off. 

Specifications:

▶ Works on any analog phone line (PSTN, VOIP) that is FSK or DTMF compatible.

▶ Telephone line powered

▶ Weight: 2.6 lbs

▶ Easy to install and re-program to auto dial any phone number (instructions included).

Applications: 

▶ Emergency phones

▶ Medical Alert phones

▶ Emergency elevators

▶ Use with courtesy phones in airports, airlines, hotel lobbies, car rentals, etc.