Thanks for getting back to me Chris.
Constellation is the following:
Office with open hours 07:00 - 12:00, During that time the status is available. Thats no problem.
From 12:00 -17:00 if an external call comes in, the phone should ring 3 times and then go to the mailbox.
All internal calls should ring about 30 seconds.
From 17:00 - 07:00 it should go to the mailbox instantly. This also works like it should.
My problem is getting two different settings for the times in which extensions should be available.
Right now I have set up external calls to ring for 11 seconds and the connect to a mailbox of one extension.
This however is not, like the customers wished for, from 12:00 - 17:00 but from 07:00 - 17:00 since I have only one status.
This could be solved by letting me choose what status an automated status change, would change into.
Using the automated status change to "away" makes the extension unavailable for internal calls.
I know I can make an exception using ring groups, but those require an additional extension. But the problem with ring group extensions is, that I cant set them up as BLF Hotkeys on the Deskphones.