IP Line and IP Phone maintenance and diagnostics 167IP Line and IP Phone maintenance and diagnosticsFor Nortel IP Phones, there are two kinds of Terminal Numbers (TNs)to consider:• A physical TN, which represents a physical unit of the Media Card.• A virtual TN, which is configured on a virtual superloop and representsan IP Phone.The physical TNs are seen as trunk units and are managed using existingLD 32 commands. These commands do not apply to virtual TNs. UseElement Manager for virtual TN maintenance. See Element ManagerSystem Reference – Administration (NN43001-632) for details.LD 32 supports STAT, DISU, ENLU, and IDU commands on an IP Phonevirtual 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 proxyThe serial number is the last three bytes of the IP Phone’s MAC address,printed in ASCII hex format.Because the system must obtain the requested information from the IPPhone, IDU is effectively a "ping" command. Consequently, it can be usedto test the end-to-end IP connectivity of the IP Phone.If the IP Phone is not registered with the CS 1000E, an NPR0048 messageis generated. If the IP Phone is registered but idle, the system prints the IPPhone IP address and Media Card IP address and generates an NPR0053message.For additional information on the output format of the IDU command in LD32 and the maintenance commands in LD 32 for the IP Phone, see IP LineFundamentals (NN43100-500).Nortel Communication Server 1000Communication Server 1000E MaintenanceNN43041-700 01.02 StandardRelease 5.0 20 June 2007Copyright © 2007, Nortel Networks.
