The system is a DK40. When trying to do a Intercom #30, I get the error "All call busy". I reset the KSU thinking something was locked up, but I still had the problem. Can the system be configured so that none of the phones are in a page group (program *30)? Would I get thie error? Could I also be getting this error if All Call Page Allowed wasn't enabled on all phones (program 31/LED 10)? :shrug:

All call page on a DK is #39

Sorry, perhaps I worded my question wrong. Intercom #39 works fine. I'm trying to page through the speakers on the phones. Intercom #30 gives me the "All Call Busy" error...

Prog 31 LED 10 must be on for all phones you wish to receive the page.

Program 31/LED 10 was it. Thanks for all of your help!