Alright, I have searched high and low and been unable to find a simple answer to this question. It must be possible for the nrf51 to launch Siri on an iPhone, I have seen product using it mention this as a feature. But I cannot find out the way to do it.
Anyone know how? Is it a special HID media key? Or some other profile? All I want to do is launch Siri, not interact with it, so the equivalent of holding the iPhone home button.
Perhaps the "product" in question has an app which receives commands over BT (whether low-energy or otherwise) and it is the app which actually launches Siri - not the BT device itself...?