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Accessories for the M3905
Analog Terminal Adapter (ATA)
The ATA allows you to connect an analog device such as a modem or FAX machine to
your telephone.
External Alerter and Recorder Interface
The External Alerter Interface lets you connect a third-party device (remote ringer,
indicator light, or recording device) to your telephone. The M3905 Call Center
Telephone uses the External Alerter and Recorder Interface accessory cartridge.
Key-based Access Expansion Module (KBA)
The Key-based Expansion Module provides additional DN or feature keys for the
M3905. You can add up to two 22-button Key-based Expansion Modules to your
M3905 telephone.
Display-based Access Expansion Module (DBA)
The Display-based Access Expansion Module provides additional line (DN) or
feature keys for the M3905 telephone. The DBA has eight keys on three layers for a
total of 24 additional DN or feature keys. The three layers are accessed through the
use of a Page key. The M3905 supports one DBA module.