On my Samsung Galaxy S7 from Verizon there is an app called Voicemail. It rarely shows voice mails. When I click on "Refresh" it says "We can't connect to Visual Voicemail at this time. Check your network connection and try again later, etc." I am connected to wifi at home, no problem there. I have not paid for Visual Voicemail.
I just want to see if I have any voice mails so I can listen to them on this app and call the person back. It is very frustrating to not be able to depend on this app. I have to know immediately when someone leaves a voicemail. I don't want to have to press "Refresh" (which doesn't work anyway) or dial 86 to see if I have any voice mails. This app sometimes works, but mostly is dead. Very frustrating!