Co Line Calling & I-Use Indication - Tadiran Telecom Emerald ICE Installation & Maintenance Manual

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Emerald ICE Installation, Programming & Maintenance Manual
CO Line Calling & I-Use Indication
Feature Code: N/A
Description
CO Line calling is the placement of a telephone call on the Public Switched
Telephone Network. CO Line calling includes: dialing local telephone numbers,
dialing national long distance telephone numbers and dialing international long
distance telephone numbers.
Placing a CO Line call can be done in several ways:
• CO Line Button
• CO Line Group Access Code
• CO Line Group Button
• Speed Dial
When you are using an intercom or CO line the associated lamp will light green
and flash at a double wink rate at your telephone. This lamping condition is
referred to as I‐Use Indication (the indication that you are using this CO Line.)
Lamps for the same CO Line that you are using will light steady red at all other
Emerald ICE digital telephones.
Calls placed on CO Lines are checked against the extension COS (Class of Service).
The conditions that can be applied to the associated COS govern the call
connection. If the dialed number is denied in the COS check, the call is
disconnected. If the Call passes the COS check, the call connection is allowed.
Default Settings:
All extensions are programmed with CO Line buttons for CO Lines 1‐6.
All extensions are allowed to dial all telephone numbers.