Siemens optiPoint key module Montageanleitung Seite 50

optiPoint Conference Kit
Positioning
To avoid interference of the loudspeakers with the microphone, the loudspeaker
should not be placed in close proximity or direct alignment with the microphone.
With the tuning knob of the loudspeaker, only the default volume is adjusted to
the room conditions; after that, it should not be changed.
To adjust the default volume, select a very low level of the telephone's loud-
speaker and store it (see the optiPoint instructions for use).
After pushing the telephone's "Loudspeaker" button, the default volume on the
loudspeaker's tuning knob can be set by means of the dial tone or by conversa-
tion.
When using the extension to the conference loudspeaker, select an identical de-
fault volume.
Later adjustments should be made during conferences only by using the u and
v keys of the optiPoint telephone.
With the "Micro sens." control on the gable end of the distribution frame module
you can adjust the sensitivity (threshold) of the conference microphone. Four
LEDs are assigned to the microphones and show the current adjustment.
In case of a perfectly adjusted sensitivity only the LED of the currently used mi-
crophone should be illuminated and shoud swich off all microphones in conver-
sation breaks.
To avoid the impression of a broken connection, it is possible to dub over a re-
sidual of the ambient noise. This is done with the "Room noise" control on the
gable end of the distribution frame module.
The room's acoustic characteristics and this positioning should be adjusted in a
few trial conversations. The optimal positioning should be identical for both dis-
tribution frame modules.
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The optiPoint Conference Kit, together with the full-duplex hands-free ca-
pability of the optiPoint telephone, requires that at the beginning of a con-
ference, as well as with sudden changes in the room acoustics, you
should always take a few seconds to adjust the quality of coverage to
changes in room conditions. This is only technically feasible if during this
stage only one participant speaks. In the menu settings of the optiPoint
handsfree (see optiPoint instructions for use) you may find further optimi-
zation possibilities, to adjust the speech quality for muffled, normal or
echoing room acoustics.