AT&T Callmaster Series Reference Manual page 100

VOICE TERMINAL FEATURES
Multi-Appearance Digital Voice Terminal Features
PHYSICAL
FEATURES
AC Powered
DC Powered
(supplied by PBX)
Optional Enhancements
Headset Adapter
External Speakerphone
Digital Terminal
Data Module
Data Module Base
Call Coverage Module
Function Key Module
Digital Display Module
7400B+ Data Module
3-10
TABLE 3-C (continued).
VOICE TERMINALS
7407D Enhd 7407 7407 Plus 7410 7410 Plus 7434D
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7444
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