When night service is on and a call comes in, all available extensions in the night service group ring immediately, regardless of the line ringing settings. Any extensions that would normally ring during the day also ring.
•Do not include extensions connected to certain auxiliary equipment (auto attendants, voice messaging systems, internal or external hotline telephones or doorphones) in the Night Service Group.
•A user in the Night Service Group can receive an after-hours outside call only if it comes in on a line that is assigned to that user’s telephone. Line assignments for extensions in the Night Service Group can vary from one extension to another.
•If you program a System Password when Night Service is on, users in the Night Service Group can dial only numbers on the Emergency Phone Number List and Marked System Speed Dial numbers without entering the System Password.
•If you have a voice messaging system, lines that are assigned to the user’s telephones in the Night Service Group are covered by the voice messaging system, depending on the status of VMS Hunt Delay and VMS Hunt Schedule.
•Night Service is ignored on T1 lines with DID.
1408/1416/9504/9508 Phone
1.At either of the first two extensions on the system, press Admin.
•To do the above during a call, you may need to press the 
PHONE button to display the Admin soft key option. If you access phone administration during a call, only the 
SPEAKER, 
MUTE and 
HEADSET buttons still affect the connected call.
2.Use the 
up or down 
arrow buttons to scroll the display to System Administration. When highlighted, press Select.
3.Use the up or down arrow buttons to scroll the display to Groups. When highlighted, press Select.
4.Use the up or down arrow buttons to scroll the display to Night Service Grp Ext.
5.When highlighted, press Select.
6.At the Extension: prompt enter the extension number whose group membership you want to change.
7.Enter 1 or 2. The default is 2 (Not Assigned), ie. the extension is not a member of the group.
•Alternatively use the 
left or right 
arrow icons to toggle through the settings or Default to return to the default setting.
8.Use the up or down arrow buttons to select another extension to adjust if required.
•Exit programming by pressing PHONE. Alternatively use the Back button to move to another menu.
M7324/M7324N/M7310/M7310N/T7316/T7316E Phone
1.At either of the first two extensions on the system, press 
Feature **config (ie. Feature **266344).
•If the system has a system password set, it is requested. Enter the password.
2.The phone displays System Admin.
3.Dial #504. The phone displays NS Group Ext.
4.Enter 1 or 2. The default is 2 (Not Assigned), ie. the extension is not a member of the group.
•Alternatively use the Next Data or Previous Data buttons to change the setting or press Remove to return to the default setting.
6.Press the Next Item or Previous Item button for the next or previous extension respectively.
•To exit phone based administration at any time, press the Release button. To select a different process use the Next Procedure or Previous Procedure buttons or dial another feature code.
ETR 18D/ETR 34D Phone
1.At either or the first two extensions on the system, press Feature 0 0 followed by two presses of the first intercom or call appearance button.
2.System Administration: is shown on the display.
3.Dial #504. The phone displays Night Service Grp Ext.
4.Enter 1 or 2. The default is 2 (Not Assigned), ie. the extension is not a member of the group.
•Alternatively use the Next Data or Previous Data buttons to change the setting or press Remove to return to the default setting.
6.Press the Next Item or Previous Item button for the next or previous extension respectively.
•Exit programming by pressing Feature 00. You can also exit programming mode by lifting the handset, then placing it back in the cradle.