I have a new Bluetooth headset and would like to use Siri with it. As far as I know, the standard way is to hold down the "call" button for a long press. Unfortunately, my headset treats a 3-second press as a "turn off" signal. Is there a workaround? Possible options I've thought of include shortening the press needed to trigger Siri, remapping the "redial" function (which on this headset involves double-tapping the button", using an alternate combo to trigger Siri, or turning on "Hey Siri" for Bluetooth only.
Most wireless headsets use a double tap of the main button for voice commands (like Siri)
You are trying to use it like wired headphones that have the controller by trying with the hold of the main button
If it has a second button also try double pressing or holding it
Airpods do this quite well. If you’re using non-apple earbuds - you can either use the hardware control on the phone to activate Siri, connect a Bluetooth keyboard that allows Siri activation or get one that has a hardware control or sensor that operates like AirPods do with a tap to invoke Siri.
Perhaps another avenue for you to pursue for an answer is to look up yout BT headset on Amazon and check out the Answered Questions, which are located just under Customer Reviews. That's where I learned that the Skull Candy BT headphones I purchased do not "support" Siri.