E4929 Cmd Rej: IS41 GSM Migration feature must be turned ON
The IS41 GSM Migration feature must be turned on before the igmsmsrelay, is41smscgttsn, or defis41smsc parameter can be specified.
Recovery
Display the status of the IS41 GSM Migration 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 if necessary. Refer to the IS41 GSM Migration User's Guide for assistance.
Re-enter the chg-gsmsmsopts command that generated this error message.