How-To Guide

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Adjust the Headband
Place the headset receiver to
your ears. Adjust the headband
until it is comfortable, ideally
ensuring that there is virtually no
pressure felt on the ears.G
PosiƟon the Microphone
To avoid low or distorted sound, and to provide clear and
crisp telephone calls, the microphone should be positioned
within 0.5 inches of your mouth. The microphone boom arm
will move in a variety of directions to ensure the best fit.
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3 4
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Answer/End call Tap the Answer/End button
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Reject call Double-tap the buttonG
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Adjust volume
Tap the Volume up or Volume
down button
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Mute the micro-
phone
Tap the mute microphone but-
ton
Busylight on/off
When on available, Green light
on, tap the Answer/End button,
Red light on
Mute on/off When mute, Red light on
How to Use
FUNCTION ACTION
Display for mute microphone
Volume up
Hook On/Off Key
Display for Hook OffG
Mute microphone
Volume down
Grandstream Networks, Inc.G
126 Brookline Ave, 3rd FloorG
Boston, MA 02215 USAG
Voice: [phone] G
Fax: [phone] G
www.grandstream.com
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GFor Certification, Warranty and RMA information, please visit G
www.grandstream.comG
How to Care for Your Headset
1.Always store the headset with the power off and safely
protected.
2.Avoid storage at extreme temperatures (above 25°C/77°F
or below -20°C/-4°F). This may adversely affect the headset.
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