I've got another question with regard to the doorphone... I've got two normal sets on the shop floor, as well as a page speaker amp.

When the doorphone chime rings, it's fairly quiet. Is the chime volume adjustable anywhere? The sets are set to ring at their loudest for calls (and they do, they can wake up the dead) but the chime is not loud enough for the shop floor ambient noise.

Or maybe there's a way to have the chime go over the page speaker? Right now it doesn't.