596 / Problems with lines
Modular ICS 7.1 Installer Guide N0130943 02
Problems with lines
The troubleshooting problems listed here focus on trouble
with making calls or using lines. For problems which are
specific to BRI lines, refer to Problems with BRI service on
page 615.
Calls cannot be made (but can be received)
1. Press ≤•‚.
2. Press a line button.
3. If an incorrect line number or name appears, or if neither
appears, on the display, check the programming settings.
OR
If the correct line number or name appears on the display,
make sure the external lines are properly cross-connected.
4. Check external lines by attaching a test telephone directly
on the distribution block.
5. Ensure that the 25-pair cable is properly connected to the
modules or the ICS.
6. Run a Maintenance session.
7. Use Module status to verify that the module on which
the Trunk Cartridge is installed is not disabled or
unequipped.
8. Run a Maintenance session and disable the appropriate
ports using Port/DN status.
Charts showing external line port number defaults appear
under Wiring charts on page 260.
9. Enable the appropriate ports using Port/DN status.
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