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HD Voice FAQs

Find out how HD Voice can improve the audio quality of your voice, video and conference calls, at no added cost. Learn about device compatibility and how to use HD Voice.

About HD Voice

Using HD Voice

Using video calling (capable phones only)

Troubleshooting

Android is a trademark of Google, Inc.
iOS is a trademark or registered trademark of Cisco in the US and other countries and is used under license.
iPhone is a registered trademark of Apple Inc.