External Speakers And Microphone; Cisco Ip Phone Key Expansion Module (Kem) Setup Overview - Cisco 8841 User Manual

External Speakers and Microphone

External speakers and microphones are plug-and-play accessories. You can connect an
external PC-type microphone and powered speakers (with amplifier) on the Cisco IP Phone by
using the line in/out jacks. Connecting an external microphone disables the internal microphone
and connecting an external speaker disables the internal phone speaker.
Using poor quality external audio devices, playing loudspeakers at very loud volumes, or placing
the microphone very close to the loudspeaker may result in undesirable echo for other parties
on your speakerphone calls.

Cisco IP Phone Key Expansion Module (KEM) Setup Overview

Figure 9.
One (1)-panel KEM; dual LCD screen, 14 line keys, two pages, providing 56 buttons
Figure 10.
Two (2)-panel KEM; single LCD screen, 18 line keys, two pages, providing 72 buttons
Cisco IP Phone 8841/8851 Multiplatform Phones User Guide
Cisco IP MPP 8851 Phone with KEM (Single LCD Screen)
Cisco IP Phone 8851 KEM with Dual Screen
Wireless Headsets
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