Are the antibodies produced by hrig and rabies vaccine the kind that call white blood cells, or do they neutralize the virus by themselves?

By themselves. Hrig is antibodies and does not elicit more. From my reading, the human vaccine is inactivated and does not elicit a cytotoxic t-cell response as do some of the animal vaccines. As one's who's been through the series myself, i'm grateful that it's available.
Themselves. They are immunoglobulins and attack the virus themselves. The body is in charge do cleanup however.