I have noticed that I no longer get text messages if someone leaves a voicemail. Before, I not only would get a text message, but the Ooma app would also pop up a notification. The Android properties says it "does not send notifications" and is turned off and cannot be turned on. I double-checked and even re-entered my phone on the web site for notifications, but it still doesn't work. Some newer reviews note it stopped working with a recent update.
I had to add an email notification, which does work.