The Service Mode: Professional (Advanced) Mode enables denial of services to SUs operating in Standard mode that are not defined in the Device. An SU operating in Standard mode must be defined in the Device before it can be registered and receive any service. An SU operating in Advanced Si mode will be authenticated and provisioned (or rejected) by the RADIUS Server. In Light (Quick) Mode, an undefined SU operating in Standard mode will be added to the database as Temporary and the subscriber will be able to use only services based on the Default Service Template(s). An undefined SU operating in Advanced Si mode will be added to the database and provisioned with services based on the Default Service Template(s) only if its Password is either quickynikynyoky or blank.