Operations Manual

SME VoIP Handset Guide 5.1
Proprietary and Confidential
Page | 14
4.3.7 Speed Dial Keys
Any key from “2” – “9” can be set as a speed dial key. A long press on any of these numbers when the handset is
in idle can be set to a short cut to calling any contact in the contact list, or in the F-Key list. For additional
information on this feature see 7.1.4 Speed Dial/On Touch Dial.
4.3.8 Volume Button
These two volume buttons placed on the upper left side of the handset are used for increasing/decreasing the
volume during a call.
NOTE: These buttons are used to control the volume when using the earpiece, a headset, and the loudspeaker,
and the lowest volume will not mute the handset.
4.3.9 Mute Button
The mute button is placed under the volume buttons on the left side of the handset. This button is used during
call to mute the call so that the microphone in the handset is turned off, and the counterpart cannot hear you,
but you are still able to hear the counterpart of the call.
Incoming call
Muted
Un-Muted
When the mute function is enabled during a call it is indicated on the “Connected” screen with the image shown
above. Mute is turned off by pressing the mute button again.
Furthermore, a press on the mute button when the handset is in idle will activate the “Push To Talk” function; for
further information on this feature see section 6.5.15 Push To Talk.