Instruction manual

Page 1321 of 3156
Features and Services
Directory Number Delayed Ringing
Contents
The following are the topics in this section:
Feature description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1321
Operating parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1322
Feature interactions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1322
Feature packaging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1325
Feature implementation . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1325
Task summary list . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1325
Feature operation . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1326
Feature description
There are two types of Directory Number keys: ringing and non-ringing. The
Directory Number Delayed Ringing (DNDR) feature offers the ability to
provide an audible notification (e.g., ringing, buzzing, etc.) after a specified
delay to non-ringing keys for a particular Terminal Number (TN). These keys
can be either Single Call Non-Ringing (SCN) or Multiple Call Non-Ringing
(MCN).
When an incoming call is presented to an SCN/MCN key, the associated lamp
starts flashing. If Directory Number Delayed Ringing is defined for the set,
an audible notification is given after a defined number of seconds (from 1 to
120 seconds). The DNDR value is defined in LD 11, and the feature is
disabled if zero is selected as the delay value. When the feature is disabled,
all Single Call Non-Ringing (SCN) or Multiple Call Non-Ringing (MCN)
keys for this particular TN will not receive audible notifications.