Ring Doorbell Wired UK

I have purchased a Ring Doorbell Wired. I currently have a transformer in my consumer unit from my existing push button doorbell. It is rated 4-8-12V. I'm not sure what the output voltage is, but hopefully 8V. In the hallway, I also have a small round mechinical chime. I opened up this mechanical chime and it there are two wires. It is just the case of bypassing this doorbell by putting a jumper cable between the two? Attached pictures.