Nortel Meridian Meridian 1 Maintenance Manual page 241

¥ 0006 indicates information is missing from the Application
Registration message. Verify that the message contains at least the
following information
Header
Application protocol
Application ID
Service ID
¥ 0008 indicates the message length contained in bytes three and
four of the Application Registration message is not correct. The
message length is the size in bytes of the entire message.
¥ 0502 the limit for the number of applications that can register has
been reached. Reboot the Application Module or IPE Module.
¥ 0504 indicates the application has already registered. The
application can either continue to use the existing registration or
release the application (by sending the Application Release
message) and register the application again.
¥ 0505 indicates the Machine ID value specified in the Application
Registration message is not valid. The value must be x25dest or
must match the value in the Machine ID link parameter in ASCII
format.
Meridian Link Release 5C/CCR Release 3C Diagnostic and Maintenance Guide
Chapter 4: Diagnosing faults 229