Philips CCS 800 User Manual page 12

•
Possible cause
Volume control position.
•
Solution
- Check if the volume control for
delegate/chairman loudspeakers on
the CPSU is not in the fully counter
clockwise position.
•
Possible cause
Microphone active or headphone
connected.
Note: Units with active
microphone or connected
headphone(s) have their
loudspeakers switched off.
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