1.1 Configuration1-12 PT OverviewOther-CO (O-CO) ButtonOutside (CO) lines which are not assigned to S-CO or G-CO buttons can be assigned to aflexible CO button on a proprietary telephone. The assigned button serves as the O-CObutton. An incoming call, on assigned outside (CO) lines, arrives at the O-CO button. Tomake an outside call, you simply press the designated O-CO button.Programming Reference• Station Programming (Section 2)Flexible Button Assignment — Other-CO (O-CO) ButtonFeature ReferencesFeature Buttons — Flexible Buttons (Section 1.1 Configuration)Outward Dialing, Line Access — Line Access, AutomaticSingle-CO (S-CO) ButtonAn S-CO button is an outside (CO) line access button. This allows you to access aspecific line by pressing an S-CO button. An incoming call can be directed to an S-CObutton.Conditions• Only one S-CO button can be assigned to an outside (CO) line.• The same outside (CO) line can be assigned as an S-CO button and G-CO button.Programming Reference• Station Programming (Section 2)Flexible Button Assignment — Single-CO (S-CO) ButtonFeature ReferencesFeature Buttons — Flexible Buttons (Section 1.1 Configuration)Outward Dialing, Line Access — Line Access, Individual
