11.1.5.4. Remove an ATND from an ATNDGR and Delete 
- Remove the attendant from the attendant group
CHA-VFGR:ATNDGR=<number>,ATNDNO=<number>, FUNCT=DEL;
- Delete the attendant
DEL-ACSU:ATNDNO=<number>,DELOPT=ALL;
- Delete attendant telephone number from the DPLN (if necessary)
DEL-WABE:TYPE=CD,CD=<key-num>,DAR=ATNDIND;