Cisco 3951 Phone Manual page 24

Using the Handset and Speakerphone
You can use your phone with a handset or speakerphone.
If you want to...
Use the handset
Use the speakerphone
Switch to the speakerphone (from
the handset) during a call
Switch to the handset (from a
speakerphone) during a call
Adjust the volume level for a call
18
Then...
Lift it to go off-hook; replace it to go on-hook.
Press to toggle speakerphone mode on or off.
Press .
Lift the handset without pushing any buttons.
Press up or down during a call or after invoking a dial tone.
This action adjusts the volume for the handset or speakerphone,
depending on which device is in use.
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