I have a newly installed CS1000E system with M3904 phones. Some phones have expansion modules. How do I program a key to see when another DN (co-worker) is in use? I would like to use this key like an ADl also if possible.
I programmed a SCN and it does show the line is in use, but a user can dial from that DN as that person. It's a security issue for some users who will get this key. Other suggestions?
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