I have been waiting for a long time to get a BT set that could do what my wired Autocom system would do.
It took a very long time, but the Cardo Edge Duo has managed it.
What I needed was
Rider to pillion / rider to rider Intercom - turn on and go.
BT connection to stanav so that I can hear instructions (and music if I fancy it) from the XT.
XT control of phone calls - incoming and outgoing. I don't get many, but I do like to be able to phone home without taking my helmet off - I always park up to do this.
And the system automatically displays caller name, and gives the option to dismiss on the Zumo screen.
I wasn't bothered about music from phone or being able to use Hey Siri / Hey Google / Hey Alexa type commands. I have tried BT music from spotify and it is pretty poor - the music gets garbled - I suspect as devices try to connect to the Xt / Phone / Cardo. So any BT link between phone and Cardo is turned off in my setup.
The instructions are not very straight forward on how to achieve this - as most headsets want to be at the centre of the communication system. I like the Zumo to be at the centre. It works better fro me.
BUT
You can get most of that with a simple BT headset - except the rider to pillion or rider to rider. £20- £30. You'd have to find one that has ear pieces that do not hurt when you put your helmet on, and find a way to (velcro) the microphone half of the lead into your helmet. But a quick search of t'internet for motorcycle helmet headphones reveals these. £30 Amazon
Link
Please understand - I am not recommending these - I know nothing about them, except that they exists and were the first to pop up in my search.
I did buy a cheap BT earbud type headset, and I use it for testing the BT set up from my XT so that I don't have to go to the bike in the garage to test things out. XT has built in speakers. Zumos like the 590 and 595 do not.
These will give you phone call capability in your helmet and call control from the satnav. If you friend has the same set up, and you have enough talk time, just call each other on the phone. Cheap and easy to set up.
I've not yet found a way of getting the phone to pick up the headset mic through the Zumo for saying 'Hey Google'. It works fine during a phone call though.