Controls On The Back / Undersite - HumanTechnik flashtel comfort II LB f Instrucciones De Servicio

Controls on the back
Ringer volume
slide switch
Controls on the underside
Headset port
(2,5 mm)
Audio-output
(3,5 mm)
Flashing area
DC 9V
Plug-in mains Telephone cable
adapter jack socket
Reset
Switch microphone
amplification on/off
LOW HIGH
Battery
compartment
English 35