When I listen to a voicemail, I want to be able to click to see the call flow that the caller took (ie. same as call History) so I can figure out what number they pressed before they got to leave the voicemail. This way, I don't have to leave the voicemail, memorize the phone number, and go into the Call History to look that information up (it's extra cognitive load and takes a whole bunch of extra clicks to try and complete the task)