Understanding the Basics
Wired ethernet provides the most reliable service.
Wi-Fi and cell phone signal (if using Teams on a mobile device) may be less reliable in some campus locations.
Other Helpful Tips about Mobile Devices (if applicable)
- Microsoft Teams apps, including Teams Voice, depend on the Internet. In the event of an Internet outage, Microsoft Teams devices connected to campus wired/wi-fi networks will be unavailable. In this rare case, having the Teams app on a mobile device will ensure phone calls can be placed or received. This is optional, unless otherwise arranged with your department.
- More information on the mobile app.
Initial Troubleshooting Steps
Try using the Teams web version via your SSO/MyApps
If phone calling seems to work normally while testing using the web version, this can be a sign that your desktop computer's Teams application may be at fault. If so, proceed with the additional steps below. NOTE: when using the Teams web version, please be sure to enter your work location for emergency 911 location purposes.
Sign out of all instances of Teams
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all Teams web windows or tabs if signed into CSULB,
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laptop computer desktop application,
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desktop computer application,
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mobile phone application,
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mobile phone Teams web windows or tabs if signed into CSULB
Restart computer
This should also check for Windows updates.
To restart a computer, click the Start button, then the Power icon, and select "Restart"
Check Windows Sound Settings
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Right-click the speaker icon in the taskbar and select Open sound settings.
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Under Output, ensure your headphones are selected as the default speaker.
- Under Input, ensure your headphones are selected as the default microphone.

Check Teams Audio Settings
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Open Teams and go the three dots next to your profile picture, then click Settings.
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Select the Devices tab
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Under Audio devices, verify that your headphones are selected as both the Speaker and Microphone
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If your headphones are not listed, it could indicate a problem with the Bluetooth connection or driver
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Bluetooth Troubleshooting: Restart your headphones: Turn them off and on again.
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Re-pair the headphones: Remove the headphones from your device's Bluetooth list and then re-pair them.
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Check for Bluetooth driver updates: Go to Device Manager, expand Bluetooth, right-click your headset, and select "Update driver".
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Run the Bluetooth troubleshooter: Search for "Bluetooth" in Windows settings and run the troubleshooter.
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Make a test call

More Advanced Troubleshooting Steps
Update or reinstall Teams software
Update or reinstall audio drivers
Headset issues, audio issues, dropped calls, devices ringing incorrectly
More Resources
Call Queue – Agents, Members, Authorized Users, Voicemail
Common Area Phones
Voicemail