IPECS Release 5
Feature Description & Operation 5.0
2-98
Operation
System
Operation of LCR is automatic based on assignments in the system’s LCR Tables
Conditions
1. There are a total of 6 LCR access mode combinations that can be defined as below:
1) LCR Access Mode 00 (M00) – LCR is disabled.
2) LCR Access Mode 01 (M01) – Loop LCR access is active.
3) LCR Access Mode 02 (M02) – Loop and Internal LCR access are active.
4) LCR Access Mode 11 (M11) – Direct CO and Loop access are active
5) LCR Access Mode 12 (M12) – Direct CO, Loop and Internal LCR access are active,
seize Co line according to the LCR attributes
6) LCR Access Mode 13 (M13) – Direct CO, Loop and Internal LCR access are active,
seize CO line according to the station attributes
2. Leading digit entries may be duplicated in the Leading Digit Table. Using a different “LDT
Index” will make each entry unique. The system will use the lowest matching entry.
3. When Direct CO LCR is used on an ISDN line, an ISDN information message with the Called
party Info Element, which includes only the numbering plan and numbering type, is sent to the
ISDN to maintain the ISDN connection while the user finishes dialing and the system modifies
the digits.
4. For Direct CO LCR, the number of digits for the LDT Table should be programmed considering
the dial-tone time-out of the network.
5. Since a CO/IP path is connected, Direct CO LCR does not support the Alternative DMT index,
which allows the system to select a second or alternative CO/IP path to place the call.
6. If the LCR CO group is not assigned, the system will not seize a CO line call and make internal
call.
7. If the LCR CO group is assigned as the unused group, the system it will seize a CO line
according to the station attributes.
Programming
TABLES 1. LCR Assignment (PGM 220)
2. LCR LDT Table (PGM 221)
3. LCR DMT Table (PGM 222)
4. LCR Table Initialization (PGM 223)
Related Features
CO/IP Access
CO/IP Line Groups
ISDN (Integrated Service Digital Network)
Station Flexible Buttons
Hardware
To Next Page
Loading...
