Be sure the the headset or car kit in in 'Pairing' mode. When in pairing mode, the light should be flashing red and blue or have a steady blue.
The put most headsets in pairing mode, turn headset OFF, then hold the power button until it goes into pairing mode as discribed above.
Then you can discover it with your phone or PC. Pin (pass key) should be 0000 (4 Zeros) or try 1111, 1234, 9999
After having the device recognized by the PS3, just go all the way to the right where your friends are listed and select "Start Chat" and select voice chat (it is not necessary to invite anyone into a chat to do this). Go to the little Tool Box for "Chat Settings", then select "Audio Device Settings" and make sure the Jabra BT2080 is selected for Output and Input.
If anything, I found a video that shows you how's it done attached.
Mono or Headset profile: this profile allows you to listen to music only.
Handsfree, A2DP and AVRCP: This Bluetooth profiles allows you to listen to music, make and answer calls.
The thing that you need to verify first is if both devices supports any of the Handsfree, A2DP or AVRCP. Example, the phone supports A2DP but the Jabra headset only supports the Headset profile, then the two devices will not allow you to make or answer calls.
But if the phone supports A2DP and the Jabra supports AVRCP, then they should work.
If you are able to verify that both devices supports any of the Handsfree, A2DP or AVRCP, but still not working, one of the devices is not responding correctly. You need to contact either the phone or the headset manufacturer.
hold down the power button until it flashes red and blue and then your phone will be able to find it. I already had my phone searching for blue tooth devices and then i held the power button down and it worked great. No code was needed with my Iphone