Alerting from a ble device

Question

Do the likes of flic, tile and pebblebee implement their own ble services/characteristics ? Or are they using standard ble profiles ?

I'm building a ble device and would like to make the phone alert/ring when a button is pressed on the device and googling doesn't suggest a standard.

Answer 1

The simple answer, both devices have to have a immediate alert service exposed in order to have 2 way alerting.

I'm using a microchip rn4020 which wasn't scanning the central device for services, once I corrected that i could see the phone app was presenting the immediate alert service.