Sennheiser BW 900 User Manual

Page 19

Basic settings

Changing the battery during a call

If you have a second, fully charged battery, you can replace a flat battery
even during an office phone call as follows:

Note:

Do not take the battery out of the headset during a Bluetooth device
call as this will interrupt the phone link immediately!

Take the flat battery out of the headset.
The headset LED

ቧ

goes off and the hook LED

lights up red indicat-

ing the headset is not received (out of transmission range).
The call is briefly interrupted, however, the call is held by the base sta-
tion for 40 seconds.

Take the fully charged battery out of the spare battery charging
slot

and insert it into the headset.

The headset LED

ቧ

flashes blue three times indicating the headset is

switched on. Subsequently the headset LED

ቧ

flashes blue once every

5 seconds to indicate that the headset is in standby mode and a ring
tone is heard via the headset.

Press the headset hook button

ብ

The call is resumed.

Insert the flat battery into the spare battery charging slot

The spare battery charging LED

lights up red to indicate that the

battery is being recharged.

ቧ

ብ