Turn HD Voice On / Off - 4G LTE Network Extender - Smartphone
Devices with HD Voice disabled can't connect to the 4G LTE Network Extender for HD Voice & Video calling functions. You must enable HD Voice from your phone to allow it to connect to the 4G LTE Network Extender.
Ensure HD Voice is enabled under 4G LTE Network Extender coverage to enjoy HD Voice and Video Calling.
Ensure Wi-Fi Calling is disabled under 4G LTE Network Extender coverage.
HD Voice cannot be disabled on 4G Basic Phones.
The settings displayed vary slightly by device.
These instructions enable HD Voice & Video calling functions.
From a Home screen, navigate: Apps > Settings > Advanced Calling.
If unavailable, navigate: Settings > Network & Internet> Advanced Calling.
Network & Internet may be listed as Connections on some devices.
Tap the Advanced Calling switch (upper-right) to turn on or off.
When turned on, tap either of the following to enable or disable:
Enabled when a check mark is present.