10.11.2. Service Information 
- To ensure that the external calling line identification restriction and the external display of a replacement number (ONLYEX0 and ONLYEXT) function correctly, you must make an entry to modify the station number with a special modification condition.
- The protocol must be able to transmit this information to the destination (e.g. QSIG).
- To suppress the display, the carrier must support a case-by-case suppression to allow the function.
IMPORTANT:
You can administer the confidential line for the attendant
console's number (ATNDIND) only in the AMO ACSU with the parameter
STATNDNO=YES/NO/ONLYEXT. (However only in expert mode in the management
interface).