Reolink wired doorbell using existing chime

Daniogroove

Hi,

I have 15VAC at the doorbell so should be fine for reolink bell but can change change transformer is required. All set up instructions opt for bypassing at the chime to get sufficient power to the camera first. I have a 4 wire to the bell so 2 spare, can I use the two spare to bring the circuit back to the existing mechanical chime?

The chime is currently wired but also has connection for a 9V battery, is it possible to bypass for the camera and either use the spare wires or 9V to keep the existing chime?