Visual voicemail is a long missing standard in the smartphone world. Voicemail is an annoying, antiquated system that needs to die already. Visual voicemail allows you to listen to voicemails by selecting individual messages instead of waiting through all of them and having to hit touch tone buttons to modify or delete them.
Thankfully, Google seems to be taking visual voicemail into its own hands with Android M. A rudimentary form of the system is available in the preview and actually works on T-Mobile, though Google plans to also support Orange in France.
Hopefully more carriers will eventually be supported, because I hate using the voicemail system. Do you use your voicemail, and what do you think of visual voicemail?