Dell MH3021P User Manual page 15

MH3021P button behavior on
some popular communication
software
My accept call / end call button
does not work on MH3021P for
Zoom Possible Solution
Video on the attached
monitor is distorted or
corrupted
Video on the attached
monitor is not displayed in
extended mode
The Echo can be heard during
the call
Speaker has no sound output
from MH3021P
Microphone does not function
on MH3021P
Can't make the phone call or
pick the incoming call in device
button via Line, WhatsApp and
Wechat?
Abnormal sound
Volume is too low
• MH3021P buttons work well with Skype for Business and Zoom.
• Other communication SW, you can access call controls via communication software UI.
UC platforms Mute/ Unmute
Zoom OK
Skype for Business OK
Microsoft Teams OK
Google Hangouts OK
Cisco Webex OK
FaceTime OK
Slack OK
GoToMeeting OK
BlueJeans OK
*Call end has 2 di erent states
1. Reject/Decline call - Can be done via End Call button on speakerphone
2. End an ongoing call - Can be done ONLY via Zoom App
If multiple conferencing applications are installed in the same IT environment or installed and
used on same PC, you may not be able to accept / end call by MH3021P. Recommend to answer
incoming call /reject call by application's interface.
• Check the video connection cables.
• Check and update the video resolution under Settings > Display > Display resolution
• Change the setting under Settings > Display > Multiple displays
• Switch modes by pressing the Windows Key
• MH3021P has the Echo cancellation feature, it will help the user at the other end of the call to
reduce the echo.
• If you hear echo in your device, it may be because of the other end user's device. Their device
may be worse in the Echo Cancellation function.
• After connecting, go to the audio sound settings for your computer and select the MH3021P as
the playback device.
• Check if MH3021 is connecting to computer correctly.
• Ensure that MH3021P volume is not set to 0%.
• After connecting, go to the sound settings for your computer and select the Dell MH3021 as the
recording device.
• MH3021P answer call and end/reject call buttons only support "Skype for Business" and "Zoom
". You can operate the answer or end/reject call via communication software UI.
• Clear any obstructions between MH3021P and the user.
• Re-plug Dell MH3021P with your computer again.
• Clear any obstructions between MH3021P and the user.
• Turn the volume to a higher level by pressing the volume up button or control by communication
software.
• Press volume setting on windows and increase the volume.
Call Accept Call End/Reject
*
OK OK
OK OK
X X
X X
X X
X X
X X
X X
X X
+ P.
Volume Up Volume Down
OK OK
OK OK
OK OK
OK OK
OK OK
OK OK
OK OK
OK OK
OK OK
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