Installation manual
IVX C-Class Installation Manual Function 2: CO lines
E.1
Function 2: CO lines
The IVX C-Class system can operate on a station-by-station basis as a PBX or as a combined key/PBX
using standard loop start lines. If a station has line keys programmed, the user accesses the lines by
pressing one of these keys or by dialing 9 (or 8 or 7). If a station does not have line keys programmed,
the user always accesses CO lines by dialing 9 (or 8 or 7).
Note: To provide additional visual indication of CO line usage, the 24-Key Digital Feature Phone’s idle display
will show on/off-hook line status.
Since the system handles call transfer functions efficiently, operating in the PBX mode provides more
programmable feature keys for other uses and the opportunity for glare is greatly reduced.
Note: All phone programmable keys default to being un-programmed (except on extension 100, where the
first key defaults as a day/night key). Use extension button mapping (Function 35; see page F.5) to
assign line keys system-wide. An individual station’s keys can be reassigned using PROGRAM 2 at
that station.
Important: Where any gray shading (■) appears in an example, it represents values either unavailable to
the function or unused in the particular example.
Function 21: CO line programming
• The CO lines are numbered 1–6.
• All CO lines are programmed to route callers during the day mode and then can be programmed to
route callers differently during the night mode. The display will indicate D (for day) or N (for night) to
show which mode is currently being programmed. Lines that are to be programmed alike can be
grouped to simplify programming.
Example: Here is a completed programming worksheet for incoming calls on line 1 to ring live to
extensions 100 and 101 at first, but be disconnected after four minutes without an answer.
(The step numbers correspond to the explanation that begins following this example.)
1.
CO
2.
Out
3.
Ring 1
[After four minutes]
X100
1 9
X101
Disconnected
Do the following to program the CO lines.
1. Choose CO lines to program
During this step, you use the first six programmable feature keys to represent CO lines. Select
lines to be programmed by pressing one or more of the programmable feature keys.
The first six programmable feature keys’ LEDs glow red. Select the COs to program alike and
press the # key to confirm. The LEDs will now glow green.
(Continued)