Control Unit
Modules
Module
Trunk Type
Station Type
Processor N/A
N/A
Power supply
N/A
N/A
008
N/A
Analog multiline telephone; Call
Management System; analog
data
via a modem
008 MLX
N/A
MLX telephone; digital data
device (such as the 7500B Data
Module)
008 OPT
N/A
On-premises or off-premises
single line telephone
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