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Optional Equipment
BusinessPhone - Standard Telephone / Economyplus Telephone
Option unit
The Option unit DBY 410 02 is an optional accessory, to be
installed on the bottom of your telephone set. The following
devices can be installed via the Option unit:
• Tape recorder
• Extra bell or busy indication outside your door
• Enhanced headset functionality or a conference unit
• PC sound card
• Second handset
Note: For people with impaired hearing the Option unit
offers the possibility to amplify the receiving volume in
the handset and headset.
Extra handset
Useful for involving a second person in your conversation, for
talking or just listening.
Tape recorder
When a recording of the telephone conversation is needed, for
evidence purposes, a tape recorder can be connected.
