Has anyone been have any problems with the VM system?

For last month or so, when calling VM the audio has been choppy, and sometimes button response might take 2-3 second to respond. Like one time the audio was so choppy i had to replay the message 3 times to understand it. and another time when i press 7 to delete the message it just kept playing for about 5 second, before deleting.

This happens on all my VoIPo numbers. All calls from these numbers have crystal clear call quality,all the time. It only happens on VM and is 100% repeatable.

Thanks