Doorbell chime alerts through headphones

Can anyone please advise me on how to get the chime alerts through my headphones (Sony WH-CH700N) when the ring doorbell 2 is pressed. I have Alexa enabled, and the alert is showing on my iphone se 2020, but it’s not coming through the headphones. Phone calls do come through on the headphones. Strangely, if I connect the same headphones to my ipad 8th gen, the doorbell chime comes through on the headphones. Both ipad and iphone are running ios 14.2.
Or if these headphones are not compatible, can anyone recommend headphones that will work with the ring doorbell.