Ring Doorbell 3 not activating old chime

I recently installed the Ring Doorbell 3 into my original doorbell wiring and the Ring 3 is working fine except for making the old inside chime function. The Ring Doorbell 3 technical information states that the diode is built into the Ring 3 so no diode is supposed to be required. How do I get the Ring 3 to activate the old chime?