If you received the Cannot Activate LTE Calls error message when attempting to turn on Wi-Fi calling, it could be because you're on a business or government account with Wi-Fi calling blocked.
If so, contact your company's Wireless Account Administrator to unblock Wi-Fi Calling.
For more HD Voice troubleshooting assistance:
- Wi-Fi Calling FAQs
- iPhones: HD Voice for iOS FAQs
- Android®: HD Voice for Android FAQs
- Windows phones: HD Voice for Windows FAQs
- HD Voice page
Shop for the latest HD Voice compatible smartphones.
HD Voice is available at no additional cost. HD Voice calls are billed as standard voice calls. Android is a trademark of Google, Inc. Apple and iPhone are registered trademarks of Apple Inc. iOS is a trademark or registered trademark of Cisco in the US and other countries and is used under license.