In particular, bell 3+, I needed to do a reset to see if the bell mic would work again. I tried pressing the orange button for 15 seconds and that put it in setup mode. I didn’t want to do a setup, just like a power off/on. Then, I tried taking battery out and back in. It also put me in setup mode. This time I went through the setup process without removing the device first. It kept all my links, many other settings. I was surprised. But mostly importantly, the bell works again.
Seems there should a simpler reset process?