User`s guide

OPTIONAL EQUIPMENT

BusinessPhone 250 - Basic Telephone

BusinessPhone 50 - Basic Telephone

CONFERENCE UNIT For conferences with many participants, the conference unit

enhances the speech quality. It provides full duplex and high

quality conversation possibilities.

ALARM

INTERFACE UNIT This plug-in module is fitted into the bottom of the tele-

phone. It makes it possible to transfer alarm signals from var-

ious 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.