AASTRA DT4x2 for BusinessPhone User Guide EN - Manual (Page 117)

117 BusinessPhone – Cordless DT412/DT422/DT432
Reference
Optional accessories
You can customize your Aastra telephone to meet your own needs.
All of the following accessories are optional and can be purchased
at your local Aastra contact.
Belt clip, swivel-type
The ordinary belt clip can be replaced with a special swivel-type
belt clip adapted to firmly place your Cordless onto your belt.
Leather casing
The leather casing is especially designed for the Cordless. The
casing comes with the swivel-type belt clip and the Cordless is fully
operational while placed in the casing.
Note: The leather case may not be used in potentially
explosive areas.
Headset
A headset is recommended if you frequently use the phone, and/or
want to have both hands free. The Cordless has a special headset
connector that is waterproof. The headset comes in three versions;
with microphone integrated in the cable (with or without adapter),
with microphone on a boom, and with hearing protection (Peltor).
An adapter, that makes it possible to connect other standard types
of Peltor headsets, is also available.
Notes:
The Cordless must be equipped with the factory mounted
headset connector.
The headset answering button is only active during a call or
when the telephone is ringing and cannot be used to get a
line when making a call.
Microphone integrated in the cable, microphone on a boom
and headset adapter may not be used with DT432.