8.14.5. Generation (Example) 
- How to configure the originating station to have access to the Broadcast
feature:
CHA-SDAT:STNO=7445,TYPE=ATTRIBUT,AATTR=BROADCST;
- Add the digits for dial access to the Broadcast feature:
ADD-WABE:CD=*51,DAR=BROADCST;
- Add the Broadcast key to a phone:
CHA-TAPRO:STNO=7445,KY08=BROADCST;