Since the last update, I am not able to answer calls that come in while I'm already on a call. Get an error message "unable to hold calls".
The last update was 4/5/18.. 8.1.0
My husband has the same phone and does not have this issue.
Do you both have the same version of the Phone app? Perhaps you could try rolling the Phone app back to the original version to see if that solves your problem.
Does this happen in Safe mode?
Do you both have the same version of the Phone app? Perhaps you could try rolling the Phone app back to the original version to see if that solves your problem.
Does this happen in Safe mode?