Buch1 > Short Reference > Call Restrictor (Incoming)
Call Restrictor (Incoming)
Enabling the Call Restrictor (Incoming) for Subscribers (on an Internal Phone)
## 8    PIN    * 23 1 #
PIN
User PIN
Disabling the Call Restrictor (Incoming) for Subscribers (on an Internal Phone)
## 8    PIN    * 23 0 #
PIN
User PIN