AT&T 7407 manual S101A and S201A Speakerphone

17)Speaker/Reset Spkr button

18)Volume control button

19)Display control buttons

For accessing the speaker or the built-in speakerphone and microphone combination. When you touch [ Select ] and

[ Speaker Reset Spkr ] the built in speakerphone performs a test of the surrounding acoustic environment by using a sequence of tones. When the tones stop, your speakerphone has finished adjusting itself for optimal performance. It is now ready for use.

Note: Your telephone can be set for either the Speaker (listen-only) feature or the Speakerphone (listen and talk) feature. Check with your System Manager to see how your Speaker button is to be used.

For adjusting the volume of the built-in speakerphone when you are using the speakerphone and a call is in progress, or for adjusting the volume of the tone ringer when you are not using the speakerphone.

For accessing display features, labeled with feature names and equipped with green lights (9 buttons).

The following optional modules are compatible with the 7406 Plus Voice Terminal:

500A Headset Adapter Provides a dual-purpose switch that turns on the adapter connecting the headset to the telephone. Pressing the ON switch is equivalent to going off-hook with the handset, and pressing the OFF switch is equivalent to going on-hook with the handset. Plugs into the speakerphone/headset adapter jack.

7400B Data Module Provides data capability to the attached DCP telephone. It also provides integrated simultaneous voice data communications over standard twisted-pair wiring. Plugs into the line jack.

S101A and S201A Speakerphone

Provides total telephone operation without using the handset Turning on the speakerphone is equivalent to going off-hook when placing or answering a call and turning off the speakerphone is equivalent to going on-hook. A mute switch is provided to temporarily cut off transmission to the distant caller. Plugs into the speakerphone/headset adapter jack.

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