Avaya B179 SIP, Руководство по установке и администрированию

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Avaya B179 SIP Conference Phone Installation and Administration Guide
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
Select INTERNAL MIC and press OK to switch between on (shaded box) and off.
 To ensure maximum audio quality, do not use the internal microphone and external
microphones connected via the PA box at the same time.
 Only the internal microphone is turned off. Any external microphones connected to the
Avaya B179 are still turned on.

Select INTERNAL SPKR and press OK to switch between on (shaded box) and off.
 To ensure maximum audio quality, do not use the internal speakers and external speakers
connected via the PA box at the same time.
Adjusting microphone volume from PA
 During a call, select > PA > PA MONITOR.

Adjust the microphone volume from the mixer so that the level on the display screen is
around 10–12 when speaking in a normal tone.
Adjusting PA calibration manually
It is possible to calibrate the duplex performance of the conference phone when it is con-
nected to a PA system. The calibration level can be set automatically by the Avaya B179 or
adjusted manually to any value between 0 and 5 (0 being full duplex).
• Increase the calibration if the other party experiences disturbing echo.
• Decrease the calibration if the other party experiences low duplex, i.e. your voice is muted
or clipped when the other party is speaking.
 The position of the PA system’s microphones and speakers and the amplifier’s settings
may affect full duplex performance.

Select > PA > CALIBRATION.
 NB. You must ask the person you are calling to assess the effect of the adjustments you
make.
 AUTO is the default setting. The figure shown in brackets is the measured calibration
value.

Select different levels and compare the audio quality to achieve your preferred setting.