Similar problem here, all calls come in on an auto-attendant, they do not want any calls to ring the classroom phones, just go to voicemail. But if a receptionist gets and outside call, the receptionist needs to be able to transfer that call to the classroom. The restrictions in the system now that can be used do not work because the system always sees the call as an outside call, so it is not as simple as just restricting outside calls to the classrooms. (networked 3300 systems, ver 7)