Hubby has a Samsung SM J320A, Android 6.0.1
I have a MotoX
While at the grocery store, I’ve called him while he is at home (connected to wi-fi).
I get the RW pre-recorded ms - 'The subscriber you are trying to call is unreachable. Please try again later."
The call does not even wring on his phone.
This has happened several times on different days, as well as to other family members, and to a business colleague.
HELP! What settings do I need to look at and change so that the calls at least go into voice mail?