How to enable VoWiFi on OnePlus smartphones!

@Ameen I have op7 on android 10 and i don't have the option. So i guess it is not necessary
It has been disabled by default by OnePlus. You can enable the option using the below given steps:
1. Dial *#800#
2. Go to Oneplus logkit
3. Go to function switch
4. Check on Vowifi switch
5. Reboot your phone
6. go to settings -- wifi & internet -- sim & network
7. Turn on WIFI Calling
8. Reboot your phone

Wait few minutes you will see volte will be replaced by vo-wifi .
 

Nitin

PS5
Messages
975
Location
Karnataka
ISP
Jio Fiber
@varkey Which broadband do u have?. Maybe the VoWiFi on jio got enabled because i am on jio fiber
 
Messages
38
Location
NA
Jio vowifi still not working on op6