Cisco Unified IP Phone User Guide for Cisco Unified Communications Manager 8.6 (SCCP and SIP) 1
Using a Handset, Headset, and Speakerphone
You can use your phone with these audio devices: a handset, headset, or speakerphone.
The phone is off-hook when the handset is lifted or another audio device is in use.
The phone is on-hook when the handset is in its cradle and other audio devices are not in use.

Using a Handset

Using a Headset

Your phone supports four- or six-wire headset jacks for wired headsets. Cisco Unified IP Phone 7975G,
7965G, and 7945G also support wireless headsets. For information about purchasing headsets, see
Headset Support, page 3.
You can use a headset with all of the controls on your phone, including and .
However, if you use a wireless headset, refer to the wireless headset documentation for instructions.
If you want to... Then...
Use the handset Lift it to go off-hook; replace it in the cradle to go on-hook.
The ringing line is selected automatically. Contact your system
administrator for the options to select the primary line each time.
Switch to the speakerphone or
headset during a call
Press or , then hang up the handset.
Adjust the volume level for
a call
Press during a call or after invoking a dial tone.
Press Save to preserve the volume level for future calls.
If you want to... Then...
Toggle headset mode on and off Press .
Switch to a handset Lift the handset.
Adjust the volume level for a call Press during a call or after invoking a dial tone.
Press Save to preserve the volume level for future calls.