Using BLE as HID [Telephony User Page 0x0B]

[Madhu babu]

Hi,

I wanted to get caller ID, of an incoming call. I found a USAGE in TEEPHONY user page 0x30 in usb hid document. So i made an entire new report like this

USAGE_PAGE(1), 0x0B, // USAGE_PAGE (Telephony)
USAGE(1), 0x01, // USAGE (Phone)
COLLECTION(1), 0x01, // COLLECTION (Application)
REPORT_ID(1), PHONE_KEYS_ID, // REPORT_ID (3)
USAGE_PAGE(1), 0x0B, // USAGE_PAGE (Telephony)
LOGICAL_MINIMUM(1), 0x01, // LOGICAL_MINIMUM (0)
LOGICAL_MAXIMUM(1), 0x07, // LOGICAL_MAXIMUM (1)
REPORT_SIZE(1), 0x03, // REPORT_SIZE (1)
REPORT_COUNT(1), 0x01, // REPORT_COUNT (16)
USAGE(1), 0x30, // USAGE (Caller ID)
USAGE(1), 0x26, // USAGE (Drop)
USAGE(1), 0x2B, // USAGE (Speaker Phone)
USAGE(1), 0x2F, // USAGE (Phone Mute)
USAGE(1), 0x20, // USAGE (Hook Switch)
HIDINPUT(1), 0x06, // INPUT (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position)
END_COLLECTION(0)

But this didn't work, so i found some other ways to get caller ID, like using ANCS service to get all apple notifications, but my issue is with getting caller ID in android devices. Can anyone tell me if there is a way to get notifications from android devices. I heard that there is a service called Alert Notification Service, Did any one implement ANS on ESP32. (or) made HID telephony user page worked. Thanks in advance.