Standard LEDs and functions3
Microsoft Teams LEDs and functions* (Teams model only) 3
Setup5
Compatible headsets5
Load software5
Daily use 6
Make/take/end calls6
Volume6
Mute 6
Launch Microsoft Teams (Teams model only)6
Troubleshooting8
What's in the box10
Support11
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/
Overview
NOTE The DA75 does not have any inline buttons. You must use your softphone interface to
perform the tasks described here.
Standard LEDs and
functions
Microsoft Teams LEDs
and functions* (Teams
model only)
Icons
Inline controlLEDsFunction
Flashing green
Call button
Solid green
Volume up / down
buttons
Solid red
Mute / Hold button
Flashing red
Incoming call
On a call
Increases / decreases the listening
volume
Headset muted
Call on hold
IconsInline controlLEDsFunction
Call button /
Microsoft Teams
/
button
Solid purple
Flashing blue
Solid blue
Headset connected; Microsoft Teams
connected
Incoming call
On a call
Volume up / down
buttons
Mute / Hold button
Pulsing purple
Solid red
Flashing red
Microsoft Teams notication
Increases / decreases the listening
volume
Headset muted
Call on hold
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NOTE * Requires Microsoft Teams variant and application
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Phone
Setup
Power on your DA Audio Processor by connecting it to your computer.
Compatible headsets
Load software
Your DA connects with any Poly/Plantronics EncorePro 300/500/700 Series or Legacy
Quick Disconnect (QD) headset.
DA85-M models only For full Teams compatibility, connect to an EncorePro HW510 or
HW520 headset.
Customize your device behavior through advanced settings and options with Poly Lens
Desktop App. Some softphones require the installation of Poly software to enable device
call control (answer/end and mute) functionality. Download: poly.com/lens.
NOTE Device settings are also available in Plantronics Hub Desktop App.
Update your Poly device
Keep your firmware and software up-to-date to improve performance and add new
features to your Poly device.
Update your device using your computer with Poly Lens Desktop App. Download at
poly.com/lens.
While updating:
• Do not use your Poly device until the update is complete.
• Do not start a second update from a second device.
• Do not stream media.
• Do not answer or place a call.
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Daily use
NOTE The DA75 does not have any inline buttons. You must use your softphone interface to
perform the tasks described here.
Make/take/end calls
Volume
Mute
Headset call control is a software feature and dependent on a compatible softphone. If you
have not installed Poly Lens Desktop App (poly.com/software) or do not have a compatible
softphone, press the headset call button first and then make/take/end the call using the
softphone application.
Answer or end a call
Tap the Call
Make a call
Dial using your softphone application.
Hold
Press and hold the Hold button for 2 seconds to put a call on hold. The Hold LED flashes
red.
Listening volume
Press the Volume up (+) or Volume down (-) button.
Adjust headset microphone volume (softphone)
Place a test softphone call and adjust softphone volume and PC sound volume accordingly.
During an active call, tap the Mute
Mute reminder
If mute reminder is on, an alert repeats when you speak to remind you that mute is
activated. Customize your settings in Poly Lens Desktop App.
button or use your softphone.
button to mute or unmute your headset.
Launch Microsoft
Teams (Teams model
only)
Your device has a Teams
app. The Teams button pulses when you have a meeting or notification.
• When not on a call, tap the Teams button to view Microsoft Teams app on your
computer.
• When the Teams button LED pulses purple, tap to view your Teams notifications or
meeting.
button to quickly view and use the Microsoft Teams desktop
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NOTE Teams model and open Teams desktop application required. Teams mobile application is
not supported.
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Troubleshooting
The headset audio is
not working as
expected when
connected to my
computer.
I cannot hear the caller.
Callers cannot hear me.
• Make sure the softphone you are using is supported by viewing
poly.com/SoftphoneCompatibility .
• Ensure that only one softphone application is opened at a time.
• Be sure you have the Poly Lens Desktop App installed.
• For best performance, ensure your headset rmware is up-to-date. See
Update rmware.
• Ensure that the headset is the default sound device by going to your
Sound Control Panel (Windows) or your Sound System Preferences
(Mac).
• Your DA audio processor is not set as the default audio device. Ensure
that the DA (DA75/DA85) is the default sound device by going to your
Sound Control Panel (Windows) or your Sound System Preferences
(Mac).
• Listening volume is too low. Press the volume up button on the
headset.
• Headset is muted. Press the mute button on the DA to unmute the
microphone.
• Headset microphone boom is aligned incorrectly. Align headset boom
with your mouth.
• Your DA audio processor is not set as the default audio device. Ensure
that the DA (DA75/DA85) is the default sound device by going to your
Sound Control Panel (Windows) or your Sound System Preferences
(Mac).
Sound in headset is
distorted. I can hear
echo in headset.
My headset stops
responding to button
presses.
(Teams model only)
Microsoft Teams does
not launch on desktop
when I press the Teams
button.
(Teams model only)
Does my Microsoft
Teams-enabled headset
work with other
softphones?
• Reduce speaking and/or listening volume on the computer using your
softphone application.
• Headset microphone boom is aligned incorrectly. Align headset boom
with your mouth.
• If the distortion is still present, lower the volume on the DA.
• When a PC goes into standby or hibernation, the DA audio processor is
no longer powered on. Be sure your PC is in an active state.
Microsoft Teams is not set as your target softphone. Change the target
softphone in Poly Lens Desktop App.
Yes, while your headset is optimized for Microsoft Teams, it can be
congured to use with other supported softphones. Set your target
phone with the Poly Lens Desktop App.
When you congure another softphone, the Call button: