Instruction manual

HARDWARE DESCRIPTION
MEMORY
BUTTONS
PROGRAM BUTTON
FLASH BUTTON
HOLD BUTTON AND LAMP
SPEAKERPHONE BUTTON
AND LAMP
MUTE BUTTON
RINGER
VOLUME
SPEAKER
CONTROL
VOLUME
CONTROL
RECEIVER
VOLUME
CONTROL
Figure 4-7.
420 Speakerphone Voice Terminal
Single-Line Voice Terminal Connection Information
Single-line voice terminal connection information is provided under the “Connectivity”
heading later in this Section. Maximum cabling distances from the system cabinets to
single-line voice terminals is provided in Section 5, “Technical Specifications.”
Single-Line Voice Terminal Feature Operations
Refer to Single-Line Teminal User Guide (555-530-702) for information about single-line voice
terminal feature operation.
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