Iwatsu ICON Series IX-5910 Owner's Manual page 144

Speaker Volume Control - The Speaker Volume Control is a rocker
switch with eleven settings. To increase the speaker volume, press the + side
of the key; to decrease the volume of the speaker, press the - side of the key.
The Speaker Volume Control now controls only the speaker volume; you
can select the desired volume through this variable control.
HOLD/DND (Hold/Do Not Disturb) - This key is used to put a call on
Hold, to set the Do Not Disturb function to prevent any calls from getting
through or ringing at your extension or to transfer the call to the number set
in your Fixed Call Forward Destination.
Mute - When you are using the Speakerphone, Hands-Free Answerback or
the handset/headset, the Mute key prevents any voice or sounds to be heard
by the person on the other end of your call. When you press the Mute key to
turn off the microphone, the Mute key will stay lit. Pressing the Mute key
again permits the other person to hear your voice again.
Ringer Volume Control - There are 4 volume levels to choose from.
When a new volume level is chosen, a tone sounds at the selected volume
level: one beep sounds for the lowest volume setting, four beeps sound at the
highest.
Handset Volume Control - The handset volume control keys allow you
to adjust the handset volume and headset volume to one of three levels.
Menu Keys and Up/Down Scroll Keys– The menu keys control various
features made available through the display. The Up/Down scroll keys are
used to scroll through the menu features.
Many Iwatsu Enterprise-CS features can be operated either by dialing a
feature operation code or using a one-touch feature key, if your telephone
has one assigned for that specific feature. The feature code numbers listed in
this manual are preset in the Iwatsu Enterprise-CS. Your system installer
may assign a different code number for any feature based on individual
system requirements.
For Basic Features, refer to Section 4 Digital Telephone section.
IP TELEPHONE USER GUIDE - 124