Receiving Volume; Ring Tone/Volume - NEC DTH-4R-1 User Manual

Muting
1. Press On/ Off MUTE during conversation.
The 'TALK' icon blinks and the voice through the microphone is muted.
2. Press On/ Off MUTE again to cancel the muted condition. (Finishing the conversation also
cancels the mute condition.)
The 'TALK' icon stops blinking.
Conferencing
This feature allows the user to set up a 3-party conference.
1. During a conversation, press CONF.
2. Dial the number for the second conference party.
3. Press CONF again to establish a 3-party conference.

Receiving Volume

1. During a conversation, press Ring/Vol to change the ear speaker volume setting.
The telephone has four receiver volume levels: Low, Medium, High, Maximum.
2. Continue to press Ring/Vol until the desired volume is selected.
When you hang up, the telephone retains the last selected volume.

Ring Tone/Volume

In standby mode, press Ring/Vol to change the ring tone and volume.
In standby mode, press Ring/Vol.
The selected tone and volume rings for about two seconds. The display shows ring
tone: Type A – High/Low, Type B – High/Low, Type C – High/Low, OFF – Vibrate.
If Ring/Vol is pressed while the ringer tone is sounded, the handset stops ringing and goes
to the next tone setting.
The LCD display disappears after the selected tone/volume rings for about two
seconds.
5