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Message Waiting Indicator
4A, S101A, and S102A Speakerphones
Speakerphones are available for providing total voice terminal operation without the use of the
handset. Turning on the speakerphone is equivalent to lifting the voice terminal handset when
placing or answering a call. Turning off the speakerphone is equivalent to hanging up the
handset. The microphone switch temporarily cuts off transmission to the distant party during a
call.
Applications
The speakerphones can be used with the DEFINITY G1, G2, G3, System 75, and System 85.
The S101A Speakerphone can be used with the single-line Models 7103A and 7102A and multi-
appearance Models 7203H, 7205H, 7403D, 7405D, 7406D, 7406BIS, 7406 Plus, Enhanced
7407D, 7407 Plus, 7410D, 7410 Plus, 7434D, 7444, 8403, 8410, 8434, and 8102 voice
terminals/telephones, and the 6508, 7505, 7506, 7507, 8503T, and 8510T ISDN terminals. The
S102A is intended for use with multi-appearance Models 7303S and 7305S voice terminals only.
The 4A speakerphone is used only with the basic 2500-series terminals and METs on an ‘‘in
place’’ basis.
Physical Description
S101A and S102A Speakerphones
On/Off button
There is a nonlocking On/Off button and adjacent green light for the speakerphone.
On/Off button
There is also a nonlocking On/Off button and adjacent green light for the microphone.
Sliding volume control
The volume of the speaker is controlled by this slide switch.
Cord
A modular cord for connecting the speakerphone to the associated voice terminal; the cord car-
ries audio signals between the speakerphone and the terminal and power for the speakerphone.
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