Installation manual

IVX 128 Function 2: CO lines
E.11
Function 232: Line disconnect
You can set the lines to detect the open loop interval (if available from the CO) and disconnect
more quickly. This will also allow the system to:
• Drop abandoned calls from Park and Hold
• Reduce the opportunity for abandoned calls to be transferred by the auto attendant
• Reduce the possibility that abandoned calls could create messages that are either silent or con-
tain CO-generated tones.
Since open loop intervals generated by the CO may vary in duration, use this function to program
IVX to less than or equal to the CO open loop interval.
If this programmed value is set unnecessarily low, IVX 128 may falsely interpret static or a momen-
tary loop break as an open loop and disconnect a caller on hold or in the process of leaving a
message. If this value is set too high, IVX 128 may not detect a valid open loop signal for fastest
call processing.
Range:
1–255 (10–2,550 ms) (or
0
to turn off open loop detect off).
Default:
6 (60ms).
Function 233: DLC12 line receive volume
Many variables can affect the volume of the T1 lines. Different volume levels may be required when
connecting a DLC12 card, depending on the signal level of the T1. The volume level can be adjusted
by increasing or decreasing the digital pad setting. By default, the digital pad setting is –2 db.
Changes to the setting are in 2-db increments.
Example:
If calls received at the extension have low volume levels, the pad level for that T1
circuit can be adjusted to increase the volume. Select the circuit to adjust by
pressing the appropriate DSS key and press
#
to confirm. Use the scroll keys to
select the appropriate db level and press
#
to confirm.
Programming a circuit
To program a circuit, select the appropriate DSS key and press the # key to confirm. You can select
from the first set of 16 COs, and then press the scroll keys to select the from the remaining 8 CO
lines on the first DLC12 card. Scrolling again will allow you to select the 16 COs on a second DLC12
card if one is installed, and scrolling again will allow you to select from the 8 remaining COs. If there
is only one DLC12 card installed, then scrolling will return you to the first 16 COs.
PC3 DLC12 13-36
CO22 CIRCUIT 10>
After selecting the COs to program, use the scroll keys to select the new level of gain or loss in db.
Press
#
to confirm. Select additional circuits to adjust and program as above.
RECEIVE VOLUME
LINE COMP -28DB>
Range:
-28 db to 6 db (lowest to highest gain, respectively).
Default:
-6 db.