1.5 Making Call Features58 Feature GuideConditions• Line Preference OverrideA user can override the preset Line Preference temporarily by pressing the desired Line Access buttonor a Memory Dialing button, such as One-touch Dialing, before going off-hook.• To select Idle Line Preference, the CO line groups available to the extension should be programmed ona Class of Service (COS) basis (→ CO Line Group Number [500]). Also CO line groups available forIdle Line Access should be assigned (→ Idle Line Access (Local Access) [103]).• If Idle Line Preference or Prime Line Preference has been set for an extension, a CO line may beautomatically seized and placed on hold when the user goes off-hook and uses a DSS button to accessanother extension. To avoid this problem:1. Set TRS for the extension to a level other than 1.2. Make sure that at least one TRS Denied Code for Level 2 has been defined. If there are currentlyno Denied Codes for Level 2, store "000" in the Denied Code Table for Level 2.When the user goes off-hook and presses a DSS button, the TRS feature is activated but the TRScheck is not complete, so the automatically seized CO line is disconnected.Feature Guide References1.8.1 Toll Restriction (TRS)User Manual References3.1.2 Settings on the Programming Mode1.5.5.3 CO Line AccessDescriptionThere are three methods of accessing a CO line.Idle Line When an extension user goes off-hook, an idle CO line is selectedautomatically from the assigned CO line groups.No Line When an extension user goes off-hook, no line is selected. In order to makea call, the user must select the desired line manually.Prime Line When an extension user goes off-hook, the preset line is selectedautomatically. A prime line can be selected from the Line Access buttons: S-CO, G-CO, L-CO, G-DN.Method Description OperationIdle Line Access (LocalAccess)Selects an idle CO line automaticallyfrom the assigned CO line groups.Dial the Idle Line Access number orpress a L-CO button.CO Line Group Access Selects an idle CO line from thecorresponding CO line group.Dial the CO Line Group Accessnumber and a CO line group number,or press a G-CO button.Method Description
