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Troubleshooting /
101
P0992639 01 Modular ICS Companion Installer Guide
If you need a Regression Key, follow these steps:
1. Record the new System Identification Number once the
system is powered up. See Step 2: Obtain the System
Identification Number on page 69 for more information.
2. Locate the following information in the MICS-XC
Programming Record.
• the original SysID
• all previously entered radio and portable credit keys
3. Call Nortel Networks Customer Response Center at
1-800-321-2649 to request a Regression Key.
4. Provide them with the original and new SysID,
Companion ID, customer address and zip code. See
Software keys (U.S. only) on page 67.
5. Make a note of the new Regression Key.
A Regression Key cannot be reused. Please do not record
this Key in the Programming Record.
6. Enter the Regression Key. Follow the same procedure for
entering software keys on page 69.
Once the keys have been entered, the previous SysID is
restored.
7. Re-enter all radio and portable credit keys recorded in
Programming Record.
8. Verify that the correct number of Radio Credits is
available. Refer toVerifying Radio Credits (U.S. only) on
page 98.
9. Re-enter all programming data using information from the
Programming Record.
10. Reregister all portables.