Ending A Call; Muting A Call - Cisco 7821 Reference Manual

You can place a call with the Cisco IP Phone 7800 in any of the following ways:

Lift handset and dial the extension or 8 for an outside number

Press New Call soft-key and dial the number

If using a headset, press HEADSET and dial the number, or New Call if the headset is already
active.

To use the speakerphone, press SPEAKER and dial the number

Dial the number. Press "<X|" to backspace and correct input if required. Press the Call soft-key
or lift the handset to initiate the dialing.

Ending a Call

You can end a call using the handset, speakerphone, or headset.

If using the handset, hang up the handset or press the EndCall soft-key.

If using the head set press the HEADSET button or press the EndCall soft-key.

If using the speakerphone, press SPEAKER or press the EndCall soft-key.

Muting a Call

While on a call, you can mute the handset, headset, or speakerphone, preventing the party you are
speaking to from hearing what you or someone else in the room is saying.

To mute a call, press MUTE

To disengage the mute function, press MUTE again.