HID telephony usage

[JamesPan]

Hi,

I want to add functions of HID telephony to pickup/decline phone on nrf51822 application. But it seems telephony usage did not work on android/ios phone, or incorrect telephony usage were sent.

Could you please help to provide one example of telephony usage which work well on smart phone.

Many thanks, James

[JamesPan]

thank you, I want to send Hook Switch like pushing button on wired headset to pickup/pud down a incoming call. I will try ANCS on iOS.

Android and iOS did not implement Telephony HID usage over GATT?