I recently changed a triad 1 cabinet to a triad 2 cabinet and ever since then there is a loud clicking on all incoming and outgoing messages. It may be a coincidence but that is when they started to notice it.

I have the same problem on my office vm but it never bothered me enough to do anything about. Any thoughts on why this is happening?

If you have analog stations it is probably the message waiting relays.

it is a digital vm

Yes, but do you have analog stations with message waiting lamps?

You are hearing a clicking when playing back messages?