Is it possible to listen to voicemail messages received on mobile broadband connection?
 

I figured out how to receive and send sms now with mmcli. Very pleased with that, however I don't see anything about voicemail. It has some bits in the help about voice calls but not messages.

My current provider is so basic that they do not give you a way to check balance except by calling them. I don't want to have to take the sim out and put in a phone any time I want to check that so wondered if there is a way to do it programmatically.

I need to do this. How do you do it?