Was perchance your BCM rebuilding brought on by lightning/power surge damage? Any chance it also damaged overhead page piece-parts? frown John C.
Oops, just reread June 7 post. It sounds like tone worked UNTIL phone page was turned off. Well, wait a minute, it could Still be external to the BCM, IF there was originally a tone generator device providing overhead page tone. Try this explanation on for 'size'. The fact that it was not working after the rebuild was hidden by the tone from the BCM. You turned off BCM tone and it "seems" like there is a problem with the BCM, when it is really something wrong in the overhead paging equipment. Am I making sense here, or just babbling to compensate for no tone? smile John C.

When I was young, I was Liberal. As I aged and wised up, I became Conservative. Now that I'm old, I have settled on Curmudgeon.