Troubleshooting guide

Troubleshooting Guide
58
Phone is not registered with
the system.
Register phone with system. See
Register IP Phones in the
Programming book of the System
Administration Tool online help. Also
see Table 18, “IP Phone
Registration Troubleshooting,” on
page 68
IP Phone IP Phone stuck at
“lock-out” or “pin in
memory”.
The PIN registration code
and the extension number of
the IP phone are saved in the
flash memory of the phone.
A potential issue evolves
when IP phones are moved
from one site to another. If
the IP phone has been
successfully registered with
system A, moving this phone
to system B will cause it to
fail and it will be stuck at
“lockout” or “PIN in memory”.
Ensure that the site is using IP
clustering before following these
steps to clear the memory.
1. Clear the PIN registration code
and the extension from the flash
memory of the IP phone, by
pressing the ∗ key for a few
seconds while powering the IP
phone.
2. After the flash memory is clear,
the IP phone will prompt you to
enter the PIN as usual in a new
system.
Network ICMP Redirect
Packets may cause
“Exception Errors” in IP
Phones which may result
in unexpected reset.
Network ICMP Redirect
Packets causing “Exception
Errors” in IP Phones
resulting in unexpected
reset.
Refer to Mitel Knowledge Base
article 08-5157-00024.
PC Port not functional COS option “PC Port On IP
Phone - Disable” is set to
Yes.
In the Class of Service Options form,
change “PC Port On IP Phone -
Disable” option to No.
IP Phones After Cisco firmware
upgrade, phones do not
respond to 802.1x/EAP
request.
Cisco firmware 12.2.5SE2
supports 802.1x/EAP
version 3, Mitel IP phones do
not recognize version 3
requests and ignore them.
Upgrade phones that support
802.1x versions 1 and 2:
• 53xx phones: Upgrade firmware
to 4.0.0.26.
• 52xx phones: Upgrade firmware
to 2.5.0.5.
Table 15: General Phone Troubleshooting
Phone Symptom Probable Cause Corrective Action
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