How can I switch the pairing mode in the dongle?

My dongle only connects to the mobile phone and not to my headset. How can I switch the pairing mode in the dongle?

With the BTD 800 USB connected to a SDW base you can either connect mobile phones or headsets via Bluetooth to the base station.

The dongle complies with the Bluetooth 4.2 standard. Pair Bluetooth devices that support the “hands free profile” (HFP), the “headset profile” (HSP) or the “advanced audio distribution profile” (A2DP).