User's Manual

Putting the headset into operation
12 | Presence
Battery level indicator displayed on Apple iPhone
When the headset is paired with an iPhone, the iPhone screen shows an
additional battery level indicator for the headset.
Pairing the headset with Bluetooth devices
The headset complies with the Bluetooth 4.0 standard. In order that data
can be transmitted wirelessly using Bluetooth technology, you have to
pair your headset with Bluetooth devices that support the “hands free
profile” (HFP), the “headset profile” (HSP) and the “advanced audio
distribution profile” (A2DP).
The headset can save the connection profiles of up to eight Bluetooth
devices with which it has been paired. After switch-on, the headset
automatically tries to connect to the two last connected Bluetooth
devices.
If you pair the headset with a ninth Bluetooth device, the saved connection
profile of the first Bluetooth device will be overwritten. If you want to re-
establish a connection with the first Bluetooth device, you have to pair the
headset again.
Using the headset with a PC and a Bluetooth USB dongle
To use the headset with a softphone, you either require a PC supporting
Bluetooth or you will need an additional Bluetooth USB dongle. These
dongles are wireless stereo audio transmitters and receivers that enable a
Bluetooth connection.
The BTD 800 USB Bluetooth USB dongle is supplied together with the Pre-
sence UC variants. Bluetooth USB dongles for the other Presence variants
are available from your Sennheiser partner (e.g. BTD 500 USB).
To use the headset with a Bluetooth USB dongle:
왘 Plug the Bluetooth USB dongle into the USB port of your PC.
왘 Follow the instructions in the next chapter, as well as those given in the
instruction manual of your Bluetooth USB dongle.
CAUTION
Danger of malfunction!
The transmitted radio waves of mobile phones can impair the operation of
sensitive and unprotected devices.
왘 Only make calls with the headset in locations where wireless Bluetooth
transmission is permitted.
paired
paired +
connected