Is there a way to add the initial burst tone to an 'all call page' on CIX100? Our old telrad does a burst tone prior to speaking and I would like that on the CIX100 page if possible.

It's possible to have a burst tone through external paging speakers (via third-party device) but not through the speakers on the phones.

I like the PI-DKT-R from Page industries on a spare digital port to add a splash tone before a page. Check out this previous post for other ideas.