Instruction manual

HARDWARE DESCRIPTION
420 Speakerphone Voice Terminal (Not Orderable)
The 420 Speakerphone voice terminal (Figure 4-7) is a single-line analog set that can be desk
or wall mounted. The 420 Speakerphone set can no longer be ordered. It has the following
components and features:
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Handset
Touch-Tone Dial
Built-In Speakerphone
Twelve Memory Buttons (where emergency numbers and frequently called numbers
can be stored for quick calling)
Six Fixed Feature Buttons
— Program - For entering the memory button programming mode
— Redial - For recalling the last number dialed
— Flash - For generating a timed switchhook flash
— Mute - For turning off the speakerphone microphone temporarily for privacy
— Hold (with status LED) - For putting calls on hold
— Speaker (with status LED) - For making speakerphone calls and for turning
on the speaker during handset calls
Tone Ringer
Three Volume Controls (tone ringer, speaker, handset receiver).
Adjuncts: None
4-21