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ISDN 8528T Voice Terminal
Speaker (Listen-only) Feature
The 8528T voice terminal can be optioned for the Speakerphone (listen and speak)
or
the
Speaker (listen-only) feature. (The voice terminal is shipped with the Speakerphone setting in
place.)
The Speaker (listen-only) capability allows a user to engage in a one-way conversation with the
far-end. The user can only listen to the far-end; the user is not able to transmit his voice over the
speaker. Use the SPEAKER button on the front of the voice terminal for turning on and off the
speaker or speakerphone. To speak with the far-end, the user must use the handset. Lifting the
handset turns off the speaker.
MUTE button
While on a call, the user can press the MUTE button (the red light next to the button goes on), so
the user can converse with someone in the same room without the other party hearing the
conversation. The user is placed in listen-only mode. To disable the feature, the user presses
the MUTE button a second time (the red light goes off). The Mute function works only with the
handset or with the built-in speakerphone.
EXIT button
The EXIT button is used for exiting a softkey feature and returning to Normal call-handling Mode.
VOLUME control button
When the user is on a call using the speakerphone, the VOLUME ‘‘arrow’’ button raises or lowers
the volume on the speakerphone Likewise, when the user is on a call using the handset, the
VOLUME control changes the receive level of the handset. When the handset is on-hook and
the speakerphone is off, this button raises or lowers the ringer volume and tones such as the
confirmation and error tone.
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