Appendix

Screen icons, indicator tones and lights

Indicator lights

Lighted display

LINE 1-LINE 4

On when a telephone line is in use.

Flashes slowly when a telephone line is

on hold.

Flashes rapidly when there is an incoming call.

MUTE

Flashes slowly when the corded handset microphone or speakerphone is muted.

NEW CALL

On when there are new or missed calls in the call log.

/MAILBOX

Flashes when there are new or missed messages in the deskset mailbox.

HEADSET

SPEAKER

On when the corded

On when the speakerphone

headset is in use.

is on.

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AT&T SB67148 user manual Indicator lights, Line 1-LINE