I can't get the ZTE Zinger to clear the voicemail notification after I used the Visual Voicemail app to check and delete the message. I've tried turning the phone on and off, but not calling my voicemail number, as I don't want to waste the minutes for something so stupid (if that would even clear it.) Anyone know what to do to clear it?
After hunting around, I finally came across a solution that worked for the ZTE Zinger.
Open up settings, select "apps", scroll over to "ALL", scroll down to "phone" and select it, then press "clear data". I don't know what else that might clear, but my call history appears to be intact.
Retrieving data ...