For example: nRF5_SDK_15.2.0_9412b96 \example\ ble_peripheral \ ble_app_ancs_c \ pca10056 \ S140 \
ARM4
I tested the ancs on the board, connected ancs with iphone, chose to forget the Bluetooth device,
clicked on the device again, and successfully paired, but there was no more notification from the
iPhone.
code:

First bind, debug information:
...

The second binding, debugging information:

...
The second binding can't receive iPhone notifications!