AT&T System 85 manual 391

ISDN 7506 Display Terminal

Self-Test

The 7506 display terminal has a local self-test. When used with the SELECT button, the DROP/TEST button begins and ends the self-test.

Loudspeaker

The 7506 display terminal has a built-in, programmable SPOKESMAN loudspeaker. The SPEAKER button is used to turn the loudspeaker on and off. The volume arrow buttons control the volume of the loudspeaker.

Speakerphone

The 7506 display terminal has a built-in, programmable speakerphone. The SPEAKER button is used to turn the speakerphone on and off. The green light next to the SPEAKER button goes on when the speakerphone is active. The volume arrow buttons control the volume of the speaker- phone.

MUTE button

Pressing the MUTE button mutes the handset or the speakerphone, whichever is active. The red light next to the MUTE button goes on. The user is placed in a listen-only mode.

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