Use your computer like a speakerphone to place and answer calls
Make sure that 
is lit so that Cisco IP Communicator will operate in
speakerphone mode. Unlike other modes, speakerphone mode provides
echo suppression. You can toggle speakerphone mode on and off by
clicking 
or by entering the keyboard shortcut Ctrl + P.
By default, speakerphone mode is active. This means that many of the actions you take to place or answer a call will automatically trigger speakerphone mode, such as using a speed dial button or softkey.
Note If you have an analog headset plugged in to the computer, you will not be able hear audio through your computer's speakers in speakerphone mode.
Click 
or the keyboard shortcut Ctrl + P. If you were using a handset
before switching, turn it off or hang it up.
Use your computer's speaker as a ringer to alert you to incoming calls
Make sure that your sound card is assigned to the ringer mode and that you have not muted your computer's speaker. Additionally, if you plug an analog headset into your computer, the ringer will be audible from the headset speakers only.
Click 
or 
to place, answer, and end calls, open and close lines, and
to switch from other audio devices to speakerphone mode. Because
speakerphone mode is active by default, you do not need to keep the
corresponding button lit as you do for headset mode.
(AutoAnswer is a non-standard feature that your system administrator might enable for you.)