Delete all voicemails in bulk

[Princess]

Hi, 

An automated system has filled up my voicemail. How do I delete all voicemails without having to do it one by one please?

Thanks.

[PeteG]

Hello. 

There isn't a bulk delete function for voicemail. It sounds like it might be a useful option though. 
For now, you'll need to delete each one as they come. 

Pete.