Ericsson BusinessPhone 50 User Manual page 84

Optional Equipment
84
Alarm interface unit
This plug-in module is fitted into the bottom of the telephone.
It makes it possible to transfer alarm signals from various devices
via the telephone to the exchange and to a pre-defined extension.
A special circuit layout provides maximum functional security.
To a telephone fitted with an alarm interface unit you can connect
devices such as bathroom alarms for hotel rooms, emergency
alarms for hospitals, bank security alarms and supervision of
machines.
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.
BusinessPhone – Executive Telephone