[Aissen]

There's always the slight possibility that this might be a bug in the macOS Monterey bluetooth stack ? Hardware interoperability is quite complicated, but the device did work with the previous version of macOS (presumably the one Jabra had to test before shipping).

[tyrfing]

Indeed. There are 100s of complaints on Reddit about Bluetooth devices being broken on Monterey, including Apple peripherals: https://www.reddit.com/r/MacOS/search?q=monterey+bluetooth&r...