Troubleshooting guide
Hardware
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Hardware Troubleshooting Tips
Only change one setting at a time (either a hardware or software setting).
Observe carefully and document all observations (for example, feature programming, call
states, time of day, problem symptoms and so forth).
If all the functionality supported by a module or card is out of service, it is likely defective.
If possible, swap the module or card with a known working module or card to confirm.
Check the Alarm logs in the System Administration tool for hardware alarms.
Check the LEDs on the hardware. Refer to “Appendix D: Status LEDs” in the MCD Tech-
nician’s Handbook for LED state information.
Verify that the IP addresses reserved for the hardware units are not used elsewhere on
the system. See the “Installation Planner” chapter in the MCD Technician’s Handbook for
a list of the IP addresses that are reserved for the Analog Main Board (AMB) and the CIMs
on the ASU and ASU IIs.
For phone related issues, is the problem occurring
- on a single phone?
- on a group of phones of a specific type (for example IP Phones only)?
- on a group of phones within a specific Class of Service only (indicates a potential
programming conflict in COS Options form)?
- during local-to-local calls only or local-to-external calls only?
For phone or trunk related issues, if you don’t find the solution in this chapter, you should
also check the troubleshooting tables in
- Chapter 5: “System Features” on page 91
- Chapter 6: “Trunking” on page 109
Use the IP Phone Analyzer Tool to help you troubleshoot IP phone problems
In the System Administration Tool use the following Maintenance and Diagnostic forms:
- Hardware Compute form: displays details of the Real Time Controller (RTC) card and
Ethernet-to-TDM (E2T) card
- Hardware Modules form: displays the Mitel Mezzanine Card
(MMC) modules that are
installed in the system.
- IP Telephone forms: displays all IP phones in the system and their status.
For help with diagnosing hardware problems, see “Hardware” on page 205.
For help with diagnosing phone hardware problems, see “Phones” on page 185.