I assume you don't have your own AA and voice messaging system off your KX-TD 1232? Relying on your service provider's voice messaging for multiple lines like this is an exercise in futility. It is not designed for it and from what you describe, it never worked for you as a proper business voice messaging.

The idea is that a messaging system should answer any ringing line with your company greeting then give the caller a list of extensions from which to choose. When the caller dials that extension it rings the phone on that persons desk and if it isn't answered goes to that person's mailbox. Other options can also be programmed.

Does that sound like the nonsense you have?

-Hal

CALIFORNIA PROPOSITION 65 WARNING: Some comments made by me are known to the State of California to cause irreversible brain damage and serious mental disorders leading to confinement.