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HEADSET POLARITY SWITCH
Located on the underside of the telephone (see Figure 7), this switch provides compatibility with the two
commonly-used headset wiring standards.
Position “V” suits Plantronics Vista cords and other headsets wired in the same configuration (also known
as “reversed” wiring mode).
Position “P” suits Plantronics P cords and other headsets wired in the same configuration (also known as
“normal” wiring mode).
Please see Table 1 as a guide to the correct settings for most popular headsets.
HEADSET
MIC ADJUST
FIGURE 7: HEADSET MIC ADJUST CONTROL AND POLARITY SWITCH
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