AT&T MERLIN LEGEND Release 3.1, System Programming Manual

Page: 411 / 887

Lines and Trunks
Programming Procedures
4–39
Console Display/Instructions Additional Information PC
3 Assign or remove the toll prefix requirement from the line/trunk.
Select
Enter Enter
or
0
Delete
Delete
.
8
You may continue to assign or remove the
toll prefix requirement from additional
lines/trunks by repeating Steps 2 and 3.
4 Return to the System Programming menu.
Select
Exit Exit
three times.
555
◆
Block Procedure
1 Specify the block of 20 lines associated with 20 buttons on the system
programming console.
Select
Lines 01-20 Lines 01-20
1
Lines 21-40 Lines 21-40
2
Lines 41-60 Lines 41-60
3
Lines 61-80 Lines 61-80
.
4
2 Specify whether or not a toll prefix is needed.
Toggle the green LED on or
off as required.
On = toll prefix needed.
Off = toll prefix not needed.
3 Return to the System Programming menu.
Select
Exit Exit
three times.
555
Hold Disconnect Interval
Use this procedure to specify the number of milliseconds before a loop-start
line/trunk is released when a caller on hold hangs up and abandons the call.
This can be specified as either a long interval (450 ms) or a short interval (50
ms). The hold disconnect interval applies to loop-start trunks connected to 400,
408, or 800 modules; it does not apply to emulated loop-start trunks (T1 facility).
NOTES:
1. If the disconnect interval is longer than the telephone company setting, the
line is not released when a caller on hold hangs up.
2. Do not program a short interval unless the local telephone company’s central
office is the crossbar type.
3. Do not program a reliable disconnect for lines/trunks with a short hold
disconnect interval. This can cause active calls as well as the lines/trunks on
hold to be disconnected. See “Disconnect Signaling Reliability.”