All the carriers have wifi calling available. This will help in providing an HD Calling experience and also help avoid the dropped calls in homes or buildings where there is poor signal strength from the cell towers. I would recommend enabling this feature on your device as its a free service. Must be an LTE capable device.
- From a Home screen, navigate: Apps > Settings.
These instructions apply to Standard mode only.
- Tap Advanced Calling.
- Tap the Advanced Calling switch to turn on or off .
First, enabling LTE for voice & data
To enable HD Voice on your compatible iPhone:
- Tap Settings
- Tap Cellular
- Tap Enable LTE
- Tap Voice & Data
go into settings, phone, then turn on wifi calling.