Siemens 300 H Operating Instructions Manual page 90

Labelling, documentation and accessories
optiset E privacy module:
Add-on unit for the voice encryption of calls.
optiset E headset/headset plus adapter:
For the connection of a headset/tape recorder.
optiset E contact adapter:
For additional call signalling, e.g. in the form of a second ringer in a noisy
environment or an illuminated display outside an office (e.g. "Do not en-
ter").
optiset E control adapter:
For the connection of a headset to a telephone linked to a PC.
optiset E phone adapter:
For the connection of a second optiset E telephone. The second optiset E
telephone can be called via its own number.
optiset E analog adapter:
For the connection of an additional analog telephone, a fax machine or a
PC with a modem card.
optiset E acoustic adapter:
For the connection of a desktop microphone, a loudspeaker box or a sec-
ond handset.
optiset E distance adapter:
For extending the range.
Headset:
For users with high calling rates.
Desktop microphone:
For handsfree conversing in difficult acoustic conditions.
Active loudspeaker box:
For enhanced acoustic quality during handsfree conversing.
Second handset:
To counteract the effects of loud ambient noise.
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For details of the products listed above, please refer to the Data
Sheet for optiset E telephones.