E4985 Cmd Rej: Destination does not support same ITU ntwk alias combination
Two ITUI or two ITUN aliases can be specified for the same destination point code only if the aliases have different prefixes. One alias must be spare and one non-spare.
Recovery
Display the existing aliases. Enter the rtrv-dstn command.
Re-enter the ent/chg-dstn command that generated this error message, specifying a valid combination of parameters. Refer to the command description in Commands User's Guide and to the Database Administration - SS7 User's Guide for assistance.