The MNP Circular Route Prevention (CRP) feature must be turned on before the crptt parameter can be specified.
Recovery
Display the status of the MNP CRP feature. Enter the rtrv-ctrl-feat command.
If the feature does not appear in the output, then the feature is not enabled. If the feature has a status of OFF, then the feature is enabled, but is not turned on.
Enable the feature as necessary. Refer to the G-Port User's Guide for assistance.
Re-enter the chg-gsmopts command that generated this error message.
