Lucent Technologies 8.2 User Manual

Page of 1707
DEFINITY ECS Release 8.2
Administrator’s Guide  
555-233-506  
Issue 1
April 2000
Features and technical reference 
1478
Ringing — Abbreviated and Delayed 
20
ISDN — World Class Basic Rate Interface 
Several of the protocol variations supported by the World Class BRI feature 
do not permit the messaging required for control of the station’s ringer by 
Ringing — Abbreviated and Delayed. In this case, ring type is forced to a 
value of ring.
Multiappearance Preselection and Preference
The system automatically selects any alerting call on a station whether or 
not it is ringing if the Per Button Ring Control field is set to 
n
. If the field is 
set to 
y
, it selects only audibly ringing calls.
Off-Premises Station and Off-Premises Extension Lines
You must use ring type of “ring” for OPS and OPX lines.
PCOL Calls
PCOL calls are not affected by the ring values, but continue to be directed 
by the bridged call alerting administration.
Redirection Notification
If Redirection Notification is enabled, terminals only receive redirection 
notification if the alerting button or the first call appearance has an assigned 
ring value of ring or abbreviated ring. 
Terminating Extension Group Calls
TEG calls are not affected by the ring values, but continue to be directed by 
the bridged call alerting administration.
Voice Mail Systems
Voice mail systems may look for ringing applied to a port to trigger call 
answer. Undesirable adjunct operation may result if ring-type translations 
are inappropriately set for ports serving these adjuncts.