List of terms
AAB
Automatic Answerback Key
AAK
Answer Agent
ACD
Automatic Call Distribution
ACDNR
ACD Not Ready
ACM
Accessory Connection Module
ADO
Asynchronous Data Option
AEMK
Answer Emergency
ALC
Automatic Level Control
ASL
ACD Agent Status Lamp
ATA
Analog Terminal Adapter
AUD
Automatic Dialing
AUL
Automatic Line
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