AT&T MERLIN LEGEND Release 3.1 System Manager's Manual page 74

Contents
Adjuncts
Telephone Adjuncts
Modems
Headsets
Headpieces
Manual Operation (Analog Multiline Telephones Only)
One-Touch Operation (MLX and Analog Multiline
Telephones)
Specialty Handsets
Message-Waiting Indicator
Additional Telephone Adjuncts
Data Communications Adjuncts
ExpressRoute 1000 ISDN Terminal Adapter
Summary
Power-Related Hardware
Power Accessories
System Auxiliary Power
Battery Backup Power
Telephone Power Units
Protection Accessories
In-Range Out-of-Building Protection
Off-Premises Range Extender
146A and 147A Surge Protectors
Electromagnetic Interference Filters
System Alarms
Trouble Alarm
Power Failure Alarm
Power Failure DID Busy-Out
Power-Failure Transfer Telephone
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System Components