Switching from the headset to the desk phone (during a call)
(phone without a headset socket)
1 Lift the desk phone’s handset.
2 Place the headset in the charging cradle or tap the «Multifunction» key.
Switching from the headset to the desk phone (during a call)
(phone with headset and/or EHS socket)
1 Lift the desk phone’s handset.
2 Please consult your desk phone’s instruction manual for the further procedure. In some cases
you have to press a key on your desk phone to switch over; in other cases this takes place
automatically.
Conference call with several headsets
Up to four Liberté wireless headsets can be connected to the base station for conference calls:
one primary and three guest headsets.
Enabling the DHSG mode
Your base station is delivered in the RHL Mode per default. Connect the headset to
your phone according the description of the EHS adapter. Place the headset on the base station.
Press the headset button to get a dial tone on the phone. Remove the headset from the base
station. Now you hear a dial tone in the headset. Press the call acceptance Key on the headset,
the headset goes offline and the phone call is also finished.
Enabling RHL mode
To return the base station to the RHL mode you need to disconnect the power cord
from the base station for 10 sec.
Connecting on a guest headset
1 Note that the primary headset registered to the base station is online. This is indicated by the
fact that the blue online symbol is lit. Press the pairing button for 5 sec. The mute icon on the
base station will flash red. Press the microphone mute button on the headset for 3 seconds
until the blue LED on the headset flashes. When the LEDs on the base station and on the
headset go out, the secondary headset is registered to the base station.
2 Repeat this procedure to log up to a total of three additional headsets.
Holding a conference call
Sw itch the primary headset online with the «Answer» button so that the headset symbol on the
base
station comes on (blue). Now press the «Answer» button on the guest headset; an
tone will be heard
in the primary headset. Press the «Answer» button on the primary
headset too so as to authorise the
guest headset. The conference link has now been established between these two headsets. Repeat
this procedure for any additional guest headsets.
10 11
Technical data
Liberté Wireless Office Headset
Operating conditions: 0˚C to +40˚C; max. 95% relative humidity (non-condensing)
Call control: Multifunction key for: accept, end and reject call; docking operations can also
accept and end calls
Volume control and mute microphone: Control on the headset
Display signal: LED shows call status, pairing status and other events.
Audio signals: Audio signals indicate incoming calls, low battery charge, volume, muting and
other events.
Sound quality: DSP noise cancelling, echo cancellation, tone control, narrow-band audio
Charging: When docked onto the base station.
Standard for wireless communication: (CAT-iq) EU DECT and US DECT
DECT range: EU DECT: up to 100 m from the base station to the headset.
DECT frequencies:
Wearing styles:
Microphone arm design:
Receiver (speaker):
Microphone:
US DECT: up to 100 m from the base station to the headset.
US DECT: 1.92 – 1.93 GHz. EU DECT: 1.88 – 1.90 GHz
Headband and ear clip
Medium-length microphone boom-arm
Loudspeaker
Microphone with noise cancelling
Headset battery
Battery type: lithium-ion polymer
Battery capacity: 300 mA/h, typical
Talk time: Up to 8 hours
Battery service life: At least 1000 charging cycles
Standby time: At least 50 hours
Operating temperature: -20˚C to +60˚C.
Charging time: 20% charge in less than 20 minutes, 50% in less than 45 minutes, full charge
in less than 3 hours
Shelf life of the battery: The headset battery retains its charge for at least 6 months when it is
switched off before the battery has to be recharged.
Terminating an active conference
If the primary headset terminates the call, the active conference is also terminated on all of the
other headsets. However, the secondary headsets remain logged onto the base station of the
primary headset. Repeat the section «Holding a conference call» for a new conference.
Participants
can also leave an active conference, by pressing the «Answer»
button on their headset briefly. The
other participants remain in the conference.
Logging off a guest headset
To log off completely from the conference mode and from the master base station, reconnect the
headset to its original base station.
