Nortel 1000E Maintenance Manual page 148

Page 148 of 162
Lamp Audit
553-3041-500 Standard 1.00
Media Card maintenance
Manager for virtual TN maintenance. See Element Manager: System
Administration (553-3001-332) for details.
LD 32 supports STAT, DISU, ENLU, and IDU commands on an IP Phone
virtual TN. All other commands generate an NPR047 message.
The IDU command provides the usual information, such as:
• TN
• TNID
• NT code
• color code
• release code
• serial number
• IP address of the IP Phone
• IP address of the Media Card that acts as the terminal proxy
The serial number is the last three bytes of the IP Phone's MAC address,
printed in ASCII hex format.
As the system must obtain the requested information from the IP Phone, IDU
is effectively a "ping" command. Consequently, it can be used to test the
end-to-end IP connectivity of the IP Phone.
If the IP Phone is not registered with the CS 1000E, an NPR0048 message is
generated. If the IP Phone is registered but idle, the system prints the IP Phone
IP address and Media Card IP address and generates an NPR0053 message.
For additional information on the output format of the IDU command in LD
32 and the maintenance commands in LD 32 for the IP Phone, refer to
IP Line: Description, Installation, and Operation (553-3001-365).
The Lamp Audit function provides a continuous source of heartbeat messages
to ensure the IP Phone is powered and the IP connection is active. Since there
is a reliable UDP connection from the Call Server through to the IP Phones,
September 2004