The speaker button is only available with a subset of digital endpoints, and with all UNIStim endpoints except for the 1110. For endpoints supporting this button, the button will always be present but may not be enabled in provisioning.
The 1110 can use handsfree and therefore implicitly use the speaker as a speaker phone by pressing the line appearance button without going off hook.
The speaker button allows users to:
Select the first available line appearance and use the speaker in a hands-free mode.
Switch to using the speaker and handsfree from whatever mode of audio was previously in use.
The button acts as turn on speakerphone audio, turn off any other audio only. The user must use another button to release the call. For example, the release button, the switch hook, another line button if auto-hold is not used and the hold was not pressed.
A station with a handset, headset, and speakerphone may switch from either the headset or handset to using the speakerphone this way; there is no button to return to the handset.
Pressing a line appearance while the handset is on the cradle will permit handsfree on some digital sets that do not have a speaker button.
For information about the exact subset of endpoints supporting this, see the endpoint documentation.
