CIX Line Buttons

Telephone buttons that are used for making and receiving outside calls are referred to as Line (or CO Line) buttons. (For information on various [DN] buttons, refer to “Directory Numbers” on page 121.) The Strata CIX supports the following types of line buttons:

CO Line Buttons

System Availability: All systems

Smaller systems have traditionally provided the direct appearance of the CO lines on the

telephones where maximum visibility of the line status, flexible ringing assignments, and informal call transfers associated with key telephone systems may be implemented.

Pooled CO Line Button

System Availability: All systems

Pooled Line Group buttons enable a group of CO lines to “appear” under one button. Pooled and single appearing line buttons are designed for use with loop and ground start lines, not Tie, DID, DNIS or ANI lines.

Group CO Line Button

System Availability: All systems

Group CO line buttons are like individual CO line buttons except these buttons represent all the lines for a particular ISDN Channel Group. This enables ISDN channels to operate similar to analog CO lines on a key telephone system. These buttons may have appearances on multiple telephones providing call coverage across several telephones. Multiple appearances of the same

Group CO line button is possible on each phone to allow multiple call handling for that group from each station.