Nortel Networks NN43111-100 - Manual (Page 15)

About the IP Audio Conference Phone 2033
15
Extension microphones
The IP Audio Conference Phone 2033 supports up to two extension
microphones that extend the microphone range in large rooms. Each
extension microphone has a
Mute button and an LED indicator to indicate
the current mute state.
Figure 2 shows an extension microphone.
Figure 2: Extension microphone