Ip Phone Registration - Mitel MiVoice Business Troubleshooting Manual

Troubleshooting Guide

IP PHONE REGISTRATION

1. Record the error message on the IP Phone display, then go through Table 17.
Tip: To rule out DHCP problems, and isolate network-related issues, we recommend
that you program the IP Phone with a static IP Address.
Note: IP sets require a firmware upgrade to support the new DHCP options introduced
in 3300 Release 7.0; otherwise, the sets will fail to boot. Such failures can occur, for
example, in a resilient cluster of mixed software releases or when sets with old firmware
are added to a controller after it was upgraded to Release 7.0. For the sets to boot,
DHCP options 128-133 must be present in the DHCP server. After the sets have booted,
options 128-133 may be removed to avoid future conflicts with standardized or other
vendors' use of these options.
2. If you still can't fix the problem collect the following information and then call Mitel Technical
Support:
Is the problem with the local or remote subnet?
DHCP server(s) settings
Layer 2 switch configuration and settings
Router configuration and settings
Network Diagram
IP addressing scheme
VLAN configuration and settings
Tip: Use the debug option on display IP phones to view Version, Network,
Telephony/DSP, Connection Browser Config, and memory Stats details (see page 159).
Note: If a 3300 system is enabled with the MLPP feature, the IP phones that register to
this controller are in an enhanced security mode. You will be unable to access the full
phone debug menu because the IP phone is locked down from a security perspective.
To bring the IP phone out of lock down mode, you must register the IP phone to a 3300
controller that does not have MLPP enabled. You must redirect the IP phone with DHCP
options (that is, change DHCP Server option (option 125) so that IP phone will register
to a 3300 controller that is not running MLPP mode). After the IP phone is successfully
registered to a 3300 controller that is not in MLPP mode and after the phone has been
up and running for approximately 20 seconds, you will be able to access the full debug
menu.
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