VoLTE

 
iPhone (iOS 13):
(1) How to Turn ON VoLTE in iPhone 7

Via handset Setting, select “Mobile Data Options”

Select “Mobile Data”

Select “Voice & Data”

Turn on “4G, VoLTE On”
 
 
 
Samsung (Android 10 & 11):
Method : Via handset Setting

Via handset Setting, Select “Connections”

Select “Mobile network”

Turn on “VoLTE calls SIM 1”
 
 
 
LG (Android 10):
Method : Via handset Setting

Select “Settings”

select “Network & internet”

Select “Mobile networks”

Turn On「VoLTE」on SIM 1
Or/and Turn On「VoLTE」on SIM 2
(if applicable)
 
 
 
Sony (Android 12):
Method : Via handset Setting

Select “Network & internet” via handset “Settings”

Select “SIMs”

Turn on ”Enable VoLTE”
 
 
 
Huawei (Android 10):
Method : Via handset Setting

Select “Settings”

Select “Mobile network”

Select “Mobile data”

Turn on “VoLTE calls”
 
 
 
Huawei (EMUI 14 & 15):
Method : Via handset Setting

Select “Settings”

Select “Mobile network”

Select “Mobile data”

Turn On “VoLTE calls”
 
 
 
OPPO (Android 15)
Method : Via handset Setting

Select “Settings”

Select “Mobile network”

Select “SIM”

Turn On “VoLTE calls”
 
 
 
Xiaomi (Android 15)
Method : Via handset Setting

Select “Settings”

Select “Mobile networks”

Select “SIM”

Turn On “VoLTE”
 
 
 
Asus (Android 15)
Method : Via handset Setting

Select “Settings”

Select “Network & internet”

Select “SIM card”

Select “SIM 1”

Turn On “VoLTE”
 
 
 
Motorola (Android 14)
Method : Via handset Setting

Select “Settings”

Select “Network & internet”

Select “SIMs & mobile network”

Select “SIM”

Turn On “4G Calling”