HANDS-FREE EMERGENCY TELEPHONE FOR LIFTS - TLS247S-1P 
INOX front plate with flush-mounting box thickness 30 mm only!
Feeding by telephone line (no additional powers sources are required)
FULL-DUPLEX conversation not affected by ambient noise
Controlled by a microprocessor
Automatic switch-off at the end of conversation
Remotely programmable
Suitable to be connected to the TELEMAINTENANCE station
Red LED lighted during conversation
Dialling of a chain of 8 possible pre-stored telephone numbers
Automatic answering after 3 rings (programmable)
Optional card for activating a RELAY by the remote Control Room or Emergency Room