7960 IP Phone: Using the Handset, Headset and Speakerphone
To place and answer calls with the handset, simply lift the handset.
To place and answer calls using the speakerphone, press SPEAKER.
You can use the speakerphone with all Cisco IP Phone 7960 features.
To place and answer calls using the headset, plug the approved headset
into the back of the phone base and press HEADSET. You can use
the headset with all Cisco IP Phone 7960 features.
To change from handset to speakerphone, press SPEAKER and hang
up the handset.
To change from speakerphone to handset, lift the handset.