The ST-HSL-A feature must be turned on before the framing=esfperf parameter can be specified.
Recovery
Display the status of the ST-HSL-A 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 and turn on the feature as necessary. Refer to the Database Administration - SS7 User's Guide for assistance.
Re-enter the ent/chg-t1 command that generated this error message.