I am converting an anolog Magix to a PRI. Once we cutover, I understand I'll need to route the main number via DID to extension 100. I will have call coverage buttons on 4 other extensions so they can answer incoming calls. The thing is, I have learned from this board that in order to route calls at night to AA I have to disable call coverage on all covering extensions. So that means I basically will have 4 night buttons in effect. What if I created a calling group, say 771, add the 4 extensions to it and then cover 100 to 771. Would that solve the problem? Or would all extension need to be in DND for the call to route to AA?