When I try to connect my iPhone to my MacBook via Bluetooth it says MacBook not supported

I am having the same problem with my iPhone and my iMac. Both are running the most current iOS. I seem to have lost the ability to transfer the voice call audio from my iPhone to my iMac. It was working a few days ago, now it isn't...

when I try to connect MacBook and Phone I keep getting a message saying it's not supported

How are we supposed to use hotspot without bluetooth or a cord?

Correct, this is expected behaviour. While many functions can be performed with Bluetooth on your Mac and iPhone, pairing in the traditional sense is not required. What are you hoping to accomplish?

Soli1945 wrote:

How are we supposed to use hotspot without bluetooth or a cord?

How to set up a Personal Hotspot on your iPhone or iPad - Apple Support

which phone ?

which macbook ?

which MacOS ?