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.
@RK: Yes, that is sort of what I was able to find out as well. The only documentation I can find from Apple seems to indicate you need HFP, but I think that you are right in that it isn't supported in BLE. Here is one product that advertises the feature, I am pretty sure it must be BLE (though I cannot 100% confirm), but based on the battery life I would think it is the only way: www.amazon.com/.../ref=sr_1_1
@awneil: I am open to this approach as well, the problem is I also cannot find a way to launch Siri through an app ;-) Apple doesn't seem to have an API to do this in their SDK and Siri access is relatively locked down