BASIC OPERATION

1. Lamp (LED) Operation

Line Buttons

Off

Lamp is off when the line is not be- ing used.

On steady

Lamp is on if the line is being used by another extension.

Wink

Lamp will “wink” to indicate the line you are talking on.

Slow flash

Lamp flashes slowly when an in- coming call is ringing or you receive a transferred call.

Fast flash

Lamp flashes fast when another extension places that line on hold.

Very fast flash

Lamp flashes very fast when you place a line on hold or you transfer a call.

ICM Button

Off

Lamp is off when you are not using the intercom.

On steady

Lamp is on steady when the inter- com path is busy.

Wink

Lamp will “wink” when you are us- ing the intercom.

Fast flash

Lamp flashes fast when an intercom call is ringing at your phone.

Speaker Button

Off

Lamp is off when the telephone is idle or you are using the handset.

On steady

Lamp is on if you are using the speakerphone.

Slow flash

Lamp slowly flashes when you are using Auto Busy Redial (while wait- ing for the telephone to redial.)

Fast flash

Lamp flashes fast when the Auto Busy Redial feature is used.

Wink

Lamp will “ wink” when you are us- ing the headset.

Mute (Enter) Button

Off

Lamp is off when the telephone is not muted.

On steady

Lamp is on when the telephone is muted, the telephone is in the pro- gramming mode or the telephone is performing Auto Busy Redial.

Message Lamp

The lamp to the right of the CID keys will:

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VTech VT 4121 manual Basic Operation