374 Defining the System DN headingsN0008589 3.3Set DNs This list displays the 7XXX digital phones, 7406 cordless digital phone,20XX IP telephones and WLAN IP telephone DNs that are not assignedor are not active. Use this list to set up new telephones before they areinstalled in the field.Note: If IP telephones are set to auto-assign DNs, the system will selectDNs that are not likely to be required by installed station modules. Youcannot pre-configure the records since you cannot know which DNs thesystem will assign to which IP telephone. Once the IP telephone isconfigured, the DN record moves to the active list, and you can access itfrom this list to perform the required configurations.Companion DNs This list displays the DNs for legacy Companion systems. The records onthis list do not have registered handsets.All Inactive DNs This list displays all digital and Companion DNs that are not assigned orare not active.All ISDN/DECT DNs This list displays all the DNs that default to ISDN or DECT applications,plus any DNs from the Companion range that have been changed toISDN/DECT.Note: ISDN/DECT DNs can also be used for handsets for the legacyCompanion system that require more than the default number ofCompanion DNs. In this case, when you define the ISDN/DECT DN asCompanion, the record disappears off this list and appears on the ActiveCompanion DNs list.All System DNs This list displays all possible DNs, regardless of whether a station moduleis configured to activate them or not. This list begins with the Start DNthat was defined when the system was initialized.All System B2s This list displays DNs only if your system is set to PDD (partial doubledensity). If the system is set to FDD, these are the second-level (B2) DNsthat assign to DS30 bus 06 and 07. This is a read-only list and includes B2DNs assigned to devices such as legacy Companion handsets. B2 DNs arealso used in some call center applications.
