Bluetooth headset

[Guest markkey]

Hi, I've got a SPV M2000. Whenever I use a bluetooth headset, of which I'ved tried serveral different makes, all then will randomly disconnect them selves during a call. To get them work again I have to deactivate bluetooth on the M2000 and start again. I'm fairly sure it's the M2000 playing up rather than the headsets.

Any suggestions on how to cure this?

Many Thanks