PT Overview 1-111.1 ConfigurationLine Access ButtonsOne of the following three types of CO buttons must be used to seize an outside (CO)line when making a call.• Group-CO (G-CO) button• Other-CO (O-CO) button• Single-CO (S-CO) buttonConditions• A Flexible CO button can be assigned as a Line Access Button (G-CO, O-CO or S-CO)in Station Programming. Once a Flexible CO button is assigned as a Line AccessButton, it provides the line status using lighting patterns and color indication. Pleaserefer to “LED Indication” in this section.• You can set the G-CO and S-CO buttons on one telephone. Incoming and outgoingcalls on the line are shown on the button in the following priority.S-CO > G-COGroup-CO (G-CO) ButtonTo use outside (CO) lines efficiently, a group of outside (CO) lines (outside (CO) linegroup) can be assigned to a CO button. This button is referred to as Group-CO (G-CO)button. Any incoming calls from any outside (CO) line in the outside (CO) line grouparrive at the G-CO button. To make an outside call, you can access an idle outside (CO)line in the group by simply pressing the assigned G-CO button.Conditions• The same line can be assigned as an S-CO button and G-CO button.• The extension for making and/or receiving calls in outside (CO) line groups must beprogrammed.• When your extension is assigned as the incoming call destination for an outside (CO)line, you cannot receive any incoming outside calls unless a G-CO, O-CO or S-CObutton associated with the line is assigned.Programming Reference• Station Programming (Section 2)Flexible Button Assignment — Group-CO (G-CO) ButtonFeature ReferencesFeature Buttons — Flexible Buttons (Section 1.1 Configuration)Outward Dialing, Line Access — Line Access, Outside (CO) Line Group
