Bluetooth drops when calling out or receiving topic

Hi everyone,

Probably a longshot but here goes.

I have a Plantronics Voyager Legend bluetooth ear-piece. It pairs well and the sound is awesome. Some while ago I started having some problems though that the piece disconnects/drops when I receive or dial out. It's fixed by pushing the 'headset' button again to connect but it's quite irritating that I have to do this everytime. I have tried a lot of roms and kernels without avail. Most of them just made the bluetoothproblem worse or made the bluetooth fail totally. I am now running ArchiDroid V1.7.18 with boeflla kernel and it's the same problem as I had with original Stock.

Anyone else had this problem? Haven't had the opportunity to try with any other bluetooth device in case it's the plantronics that's the problem. Is there an app that can keep the connection alive even when I get calls?
I am suspecting that this might be a hardware problem but hope is the last thing that leaves us ;)

Seems to be a lot of bluetooth-problems for the S3 if you look at the search-results but my particular problem don't seem to be mentioned what I've seen.

Thanks in advance.