Instruction manual

Page 1911 of 3156
Features and Services
Listed Directory Numbers
Contents
The following are the topics in this section:
Feature description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1911
Operating parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1911
Feature interactions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1912
Feature packaging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1912
Feature implementation . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1912
Task summary list . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1912
Feature operation . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1913
Feature description
Each customer within the system can have up to four Listed Directory
Numbers (LDNs) in the public directory on Direct Inward Dialing (DID)
trunks. Each Listed Directory Number (LDN) is assigned to an Incoming Call
Indicator (ICI) key, enabling the attendant to answer an incoming call
appropriately. For systems without DID facilities, LDNs can be provided on
incoming Public Exchange/Central Office (CO) trunks assigned to a trunk
group and an Incoming Call Indicator (ICI) key on the console. Local
telephones and TIE trunks can call the attendant using any of the four DNs.
Operating parameters
A maximum of four LDNs can be assigned per customer.