sephstyler , Dec 9, 2020 : Before OOS/A11, we at least had the access to use PDC to try different profiles. That doesn't work anymore.
mojoyoyo77 , Dec 10, 2020 : Sometimes it is not enough to have the option in the sim settings, you have to enable the service by the telephone operator
mojoyoyo77 , Dec 10, 2020 : Maybe they have changed something in Android 11 and the tool does not work well, look at xda
H.ALKHATER , via OnePlus 8 Pro , Dec 10, 2020 : I can't use telephone operator cuz android 11 doesn't work with it If u have any way or youtube video? Sent it to me Thank you
P1604662256009 , via OnePlus 8T , Dec 10, 2020 : You can try this way, for me worked : https://forums.oneplus.com/threads/volte-question.1356484/
sephstyler , via OnePlus 8 Pro , Dec 10, 2020 : Will try. Issue is I don't know which profile currently will work with the network that I'm on, so there will be some trial and error happening.
mojoyoyo77 , Dec 11, 2020 : If you succeed, do not forget to publish the profile that worked, with the collaboration of everyone, perhaps a table with the profiles by operator / country could be made
P1604662256009 , Dec 11, 2020 : it's a good idea, maybe based on this information the people from oneplus give their interest to exist natively in the firmware these profiles.