![Centrios 4314000 Owner'S Manual Download Page 30](http://html1.mh-extra.com/html/centrios/4314000/4314000_owners-manual_2582600030.webp)
29
BASIC OPERATION
USING HANDSET SPEAKERPHONE
To make a call or while on a call, press [Spk.] to turn the speakerphone ON and OFF.
The Speakerphone Light comes ON when the speakerphone is in use.
INSTALLING AND USING HEADSET
Whenever a compatible 2.5mm headset is plugged-in the jack located on the side of the handset, either
before or during a call, the audio signal will be diverted to the headset. Unplugging the headset from
the jack will return the signal to the handset earpiece and microphone immediately.