Nortel Modular Ics 6.0 Installer Guide

Problems with BRI service / 571
P0992638 03Modular ICS 6. 0 Installer Guide
5. Verify that the loop is provisioned.
6. Verify that the loop is properly configured, including the 
proper loop type, SPIDs, and Network DNs.
7. Disable and re-enable the BRI Card.
8. Disable and enable the module for the Card.
Out of service displays when a BRI is selected 
(LED for loop is lit)
Possible problem
The loop is configured incorrectly. Layer 1 is present but 
Layers 2 and 3 are not working.
Solution
1. Verify that...

572 / Problems with BRI service
Modular ICS 6.0 Installer GuideP0992638 03
Possible problem
The card is not recognized by the ICS.
Solution
1. Verify that an Expansion Cartridge with Clocking, or 
Clocking Cartridge is installed in the ICS.
2. Replace the card with another card of the same type.
Caller hears one ring and then a fast busy signal 
when placing a call on a BRI line
Possible problem
CACH or EKTS, which are not supported by Modular ICS, is 
included in the ISDN services package.
Solution
1....

ICS down / 573
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ICS down
1. If AC power is present and the LED indicator on the ICS 
is off, replace the ICS power supply.
2. Disconnect all central office and station lines from the 
ICS. Power down the ICS by unplugging it.
Replacing the ICS power supply
❶ ❷ 

574 / Trunk or Station Module down
Modular ICS 6.0 Installer GuideP0992638 03
Trunk or Station Module down
1. Run a Maintenance session to ensure that the Trunk 
Module is not disabled. See Module status on page 495.
2. Disable the module using the Maintenance heading 
Module status.
3. Enable the module using the Maintenance heading 
Module status.
4. For Trunk Module
Check the external line by terminating a single-line 
telephone directly on the distribution block, or equivalent, 
which connects to the...

Data Module down / 575
P0992638 03Modular ICS 6. 0 Installer Guide
Data Module down
1. Run a Maintenance session to ensure that the module is 
not disabled. See Module status on page 495.
2. Disable the Data Module using Module status.
3. Enable the Data Module using Module status.
4. If the Data Module is still down, power down, then power 
up the ICS and the Data Module.
If the problem persists
1. If AC power is present and the LED indicator on the Data 
Module is off, replace the Data Module.
2....

576 / Problems for network or remote users
Modular ICS 6.0 Installer GuideP0992638 03
Problems for network or remote users
Remote feature code gets no response
Possible problem
A Norstar user has called into another Norstar system and is 
trying to activate a remote feature but gets no response after 
dialing the feature code.
Solution
1. Make sure that the remote caller is dialing the feature code 
correctly. Use the asterisk (*) character, followed by the 
feature code, to activate a remote feature....

Problems for network or remote users / 577
P0992638 03Modular ICS 6. 0 Installer Guide
2. Verify all the digit strings that the switch should be 
sending.
3. Check that you have defined the corresponding Received 
number for every target line in your system.
4. Make sure that the published telephone numbers for your 
network are correct.
Dialed number gets stuttered dial tone instead of 
ringback
Possible problem
The remote caller has tried to reach a Norstar target line, but 
has reached a trunk with...

578 / Problems for network or remote users
Modular ICS 6.0 Installer GuideP0992638 03
Dialed number gets dial tone instead of ringback
Possible problem
The remote caller has tried to reach a Norstar target line, but 
has reached the Norstar system instead. Norstar has mapped 
the incoming digits onto the Auto DN.
Solution
1. Verify all the digit strings that the switch should be 
sending.
2. Check that you have defined the corresponding Received 
number for every target line in your system.
3. Check that...

Problems for network or remote users / 579
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Dialed number does not get through
Possible problem
The digits sent by a switch at a central office or in the private 
network did not match any Received number, the Auto DN, or 
the DISA DN. There is also no prime telephone assigned for 
the incoming trunk. In this case, the caller may hear overflow 
tone from the Norstar system or a recorded message from the 
originating switch.
Solution
1. Configure a prime...

580 / Problems for network or remote users
Modular ICS 6.0 Installer GuideP0992638 03
3. If the switch at the far end is sending pulse signals, make 
sure they are being sent at the proper rate. 
Pulse digits must be 300 ms or more apart for Norstar to 
receive them.
Possible problem
If remote callers are having difficulty getting through from the 
public network, there may be a problem with your DID Trunk 
Cartridge.
Solution
1. Connect a single-line DTMF telephone to a DID trunk 
input on the DID Trunk...