Is anyone else having issues w/ YouMail today?

I am having some, not all, callers get a message asking to enter a phone number and pin # . Same message as calling from a number other than your registered phone number to check your messages.

It doesn't seem to be repeatable - some callers are getting my default greeting and others are getting the request to enter the phone number.

I have only used YouMail for the past week and no problems before today.

Thanks,

Tim