Visual voicemail on a T-mobile nvmo fails after a certain number of messages reached
I am using Teltik, that often identifies itself as Mintmobile, and leases lines off T-mobile. Alas, my iPhone 6S+ doesn't always register visual voice mails when someone leaves me a message. I have to call my own number to verify there aren't any new messages sometimes. Is there an app, that has a better tie in with carrier voicemails than the one built-in to the iPhone that has no limit to the number of messages it can download from it? My space on the iPhone has over 12 GB free, so I know it isn't that. Sometimes when I delete a message on the carrier voicemail, it will redownload the messages from the carrier side, but not always. I'm not always some place where I have three isobars of signal, and have even tried to enable WiFi dialing.