User's Manual
5
ENGLISH
JABRA SPEAK 510
HOW TO USE THE JABRA HANDSET 450 
CISCO
INSERT IMAGE OF Speak 450 Cisco + LABELS
IMAGE
Answer call Pick up the handset
End call Dock the handset in the cradle
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Speaker volume 
up/down*
Tap the Volume + or 
Volume - button
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Mute/un-mute 
microphone
Tap the Mute button
SWITCHING BETWEEN TWO CALLS
The Jabra Handset 450 Cisco can accept and handle two calls.
End current 
call and answer 
incoming call
Dock the handset to end 
the current call, and pick up 
the handset to answer the 
incoming call
Put current call on 
hold and answer 
incoming call
HOW??
Switch between 
held call and 
active call
HOW??










