Page 1417 of 1814International ISDN PRI Feature description and administration1422Network-wide Listed Directory NumberContentsThe following are the topics in this section:Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1417Operating parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1418Feature interactions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1418Feature packaging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1419Feature implementation . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1420Task summary list . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1420Feature operation . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1421DescriptionListed Directory Numbers (LDNs) can be defined as Incoming CallIdentification (ICI) keys on an Attendant Console, making it possible to havedifferent presentations when different DNs are dialed. Without this feature, itwas only possible to define four LDNs on a Meridian 1. This feature makesit possible to define six LDNs on a Meridian 1.Without this feature, when an LDN call was routed from one node to another,the call was presented according to trunk type (for example, NDID, NTIE,NCO, NFEX, or NWAT). The call was presented on LDN key zero if none ofthe trunk route ICIs were configured. With the Network-wide ListedDirectory Number feature, if the dialed DN is an LDN and an LDN key existsthat corresponds to the dialed LDN, the call is presented on that ICI LDN key.
