This will also affect 3G mobile phones and some older 4G mobile phones that do not support Voice over LTE (VoLTE or HD Voice). AT&T offers guidance for which devices can be updated here. The exact …
( read original story …)
This will also affect 3G mobile phones and some older 4G mobile phones that do not support Voice over LTE (VoLTE or HD Voice). AT&T offers guidance for which devices can be updated here. The exact …
( read original story …)