AT&T SYSTEM 25 Manual page 148

When the attendant leaves for the night, the system can be set so that incoming calls on
specified trunks either ring a night bell or are directed to preassigned voice terminals.
There are two types of Night Service: Directed Night Service and Trunk-Answer-from-Any-
Station (TAAS) Night Service. Directed Night Service redirects incoming calls on specified
trunks to designated voice terminals. With TAAS Night Service, an external alert (such as a
bell) notifies users of an incoming call; users can then answer incoming calls on specified
trunks by dialing the Night Service access code.
The Night Service feature is not available for systems without at least one attendant console,
which must have an administered NIGHT button. In a system with two attendant consoles,
both consoles may be assigned a NIGHT button. Either attendant can press NIGHT to
activate Night Service.
DID trunks, Dial-in Tie trunks, and Remote Access trunks (dedicated or
NOTE:
shared) cannot be given Night Service treatment.
Directed Night Service
Directed Night Service calls are administered, on a per trunk basis, to ring at up to
four designated stations. Directed Night Service calls do not hunt or receive coverage,
but they can be picked up with the Pickup feature. (These calls also do not receive
Following/Forwarding treatment if the PDC is signed in at another station.)
If a call is not answered within a specified number of rings (or, if all Directed Night Service
stations are busy), the caller will receive a Night Service delay announcement, if available.
Two different recorded announcements may be assigned. After the announcement is played,
the call is disconnected.
If Send All Calls is activated at a Directed Night Service station, night service calls willl ring at
that station. If a trunk providing Directed Night Service is also a Personal Line, night service
calls will ring at the night service stations and at the Personal Line appearances. The calls will
also receive coverage of the principal for the Personal Line.
Directed Night Service calls ring immediately at an available SYSTEM ACCESS button of a
multiline Night Service station, regardless of the administered ring option. If the multiline
Night Service station's SYSTEM ACCESS button has bridged appearance(s), the BRIDGED
ACCESS button(s) will flash but not ring.
Night Service
Night Service 3-31