I have configured night service, and also the code to toggle night services on and off. Basically I'm trying to test the night services, so I toggle the night service to on and a message appears on the phones that has been assigned to night service. When I call an extension that is a member of night services, only that one extension rings, I'm expecting all phones belonging to the night service to ring but they don't. Am I missing something? Can someone please clarify ?
I think you may need to designate more IP Phones with the night-service bell command;
When an ephone-dn is marked for night-service treatment using the night-service bell (ephone-dn) , incoming calls that ring during the night-service time period on that ephone-dn send an alert indication to all IP phones that are marked to receive night-service bell notification using the night-service bell (ephone) command. The alert notification is in the form of a splash ring (not associated with any of the individual lines on the IP phone) and a visible display of the ephone-dn extension number.
The following example designates the IP phone that is being configured as a phone that will receive night-service bell notification when ephone-dns marked for night service receive incoming calls during a night-service period:
Router(config)# ephone 4
Router(config-ephone)# night-service bell
From this good doc;
Hope this helps!