How to clear a stuck voicemail notification on android

The easiest solution is to leave yourself a new voicemail. Then access your voicemail box and delete the message you left, and it will remove the notification.

If that does not work, perform the following steps depending on your device:

Clear a stuck voicemail notification on Moto G/Nexus

Settings > Apps > All > Phone > select Clear Data under the storage section

Clear a stuck voicemail notification on HTC

Settings > Apps > All (tap on Downloaded to select All) > Phone > select Clear Data under the storage section

Clear a stuck voicemail notification on Samsung

Settings > More (4th tab on top) > Application Manager > All > Phone > select Clear Data under the storage section

Clear a stuck voicemail notification on LG

Settings > General (4th tab on top) > Apps > Phone > select Clear Data under the storage section

Source: http://www.syncios.com/blog/how-to-clear-a-stuck-voicemail-notification-on-android/

Related tips: If you would like to backup voicemail or SMS, MMS on your android Phone, check this how-tos article