LowVisionOnMission 2 points 7y ago
There is a great (but expensive) app available for Android devices called Synapptic. Have a look on their website and the service is fantastic. I recommend it to clients using Android for basic use.
fastfinge 2 points 7y ago
Has he tried using earbuds or a headset? Talkback might activate if he does that; it might be refusing to activate because Google is trying to avoid having the sound of talkback come over the phone call. IOS used to have this issue, but they fixed it ages ago. I don't have an Android, so other than that I'm not sure, I'm afraid.