sounds (music, VOIP communication, or any other) will be converted to mono and sent
to the headset’s earphone, together with the audio signal receive by telephone. The
headset connection is useful when you want to conduct a high quality private
conversation using a standard telephone / cellular phone headset.
IP – Telephone bridge
With the Duet connected to both your computer and your telephone you can either
conduct a telephone conversation using the Duet, or a VOIP conversation. The Duet will
also allow you to connect and communicate with both your telephone party and your
VOIP party at the same time. When such a simultaneous conversation occurs, the Duet
will bridge between your telephone party and your VOIP party, and they can
communicate with each other in addition to communicating with you.
This feature is very convenient if you are on a VOIP call and want to patch-in a person
that has no access to a computer at the time. Simply call him/her using your telephone,
while keeping the VOIP call alive. It is also useful if you want to record your telephone
conversation on the PC (all you need is a recording utility on your PC).
Volume Up / Volume Down / Mute
When the Duet is powered, a blue
light will illuminate through the
buttons on top of the unit, indicating
that the unit is on and operating.
Push the middle button (with the
microphone icon) and the light will
start to blink, signaling that the unit
is in Mute Mode. In Mute mode the unit’s microphone (internal or external if you use a
headset) is blocked. Push this button again, and the light becomes steady, indicating
that the microphone is open and live.
Pushing the Up Arrow and Down Arrow buttons, will increase / decrease the unit’s
volume. You can also control the input / output signal levels using your computer’s
volume controls (this will only affect you VOIP signal levels) or your telephone volume
control (will only affect your telephone’s communication signal levels). A prolonged push
on the Volume buttons will increase / decrease the volume several levels – until you stop
pushing.
The Duet will make a beep sound when a volume up / volume down are pushed, and a
series of beeps when a prolonged push is performed (each beep signals one level of
volume increase / decrease).
How to set the audio levels on your computer (Window)
In most cases the Volume Control icon appears on the lower
right hand side of your computer’s monitor
If it does, double click it. If it doesn’t, click on “Start”, “Control
Panel”, “Sound Speech and Audio Devices”, “Sounds and Audio
