FEATURES GUIDE

General Features
176 Features Guide
Line Access, Direct
Description
Allows the digital proprietary telephone user to select a CO line by pressing an idle CO button,
which automatically establishes handsfree operation mode and allows the user to perform On-
Hook Dialling. The user need not press the SP-PHONE button nor lift the handset.
Conditions
• There are 2 types of CO buttons which can be programmed on an extension: Single-CO
button and Loop-CO button.
• Each extension is subject to System Programming items for CO lines available to access.
Programming Guide References
• [005] Flexible CO Button/PF Key Assignment
• [400] CO Port Connection Assignment
• [605-606] Outgoing Permitted CO Line Assignment — Day/Night
Features Guide References
• Button, Loop-CO (L-CO)
• Button, Single-CO (S-CO)
• CO Line Connection Assignment — Outgoing
User Manual References
• 2.2.1 Basic Calling
• 4.1.3 Customising the Buttons