I wonder if you mean Circle of Trust or Trusted Callers. Circle of Trust only applies to OBi numbers. Trusted Callers applies to all other numbers. Either way the easy way is to simply remove all rules that do not have an "aa" in them.
For Circle of Trust you may be left with:
Voice Services > OBiTALK Service > InboundCallRoute:
{(200123456|290654321|200454545):aa}
For Trusted Callers you may be left with:
Voice Services > SP1 Service > X_InboundCallRoute:
{(12345678912|19876543212|12323232323):aa}
Other callers should receive fast busy or a message on their soft phone "486:Busy Here"