I’ve done industrial networking protocols but never Bluetooth. I’m guessing some equipment didn’t implement the standard correctly or fully. Typically there’s someone you gotta pay like $10k+ to verify your equipment meets the standard so you can put the logo on the box but I’m sure the headphone or whatever device has pawned that responsibility off to whoever they bought their Bluetooth chip from.
I’ve done industrial networking protocols but never Bluetooth. I’m guessing some equipment didn’t implement the standard correctly or fully. Typically there’s someone you gotta pay like $10k+ to verify your equipment meets the standard so you can put the logo on the box but I’m sure the headphone or whatever device has pawned that responsibility off to whoever they bought their Bluetooth chip from.