How do I turn off the visual part of the viocemail on the htc desire 510 phone?

[AC Question]

I still want the audio voice mail.

 

[B. Diddy]

Welcome to Android Central! Which carrier do you have? Visual Voicemail is usually a carrier feature (requiring an extra fee if you have Verizon). You should be able to disable it in Settings>Apps>All​ by selecting Visual Voicemail and tapping Disable.