Comedian mail notifications

Hello;

I have a small and rather annoying issue with voicemail notifications. The xtn rings one ring every 10 - 15 mins when a voicemail is sitting there unread.

Is there anywhere I can alter this setting? Ideally each time the line became free would be a good reminder time, else, every 2 - 3 hours

This is not an Asterisk or FreePBX setting, is your phone configuration.

How odd - it only started doing it in the last 2 weeks or so.