Using Your Speakerphone - Comdial DSU and DSU II System Reference Manual

Introducing The LCD Speakerphone
1.2

Using Your Speakerphone

When using your speakerphone, the microphone and loudspeaker are
farther away from you than when you use a handset. Both the signal from
the loudspeaker and the signal to the microphone must be strengthened.
When microphones and loudspeakers are close together (such as in a
speakerphone), additional amplification typically generates a ringing
sound (public address systems do this if the volume is too high or the
microphone is too close to a loudspeaker).
NOTE: The 8324F-** speakerphone can function in the full-duplex or
half-duplex mode. Both sets of guidelines (section 1.2.1 and
section 1.2.2) are applicable to the 8324F-**.
The 8012S-**, 8024S-**, 8324S-**, and 8312S-**
speakerphones only function in the half-duplex mode—only
section 1.2.2, Speakerphone User Guidelines, apply to these
telephones.
1–2 LCD Speakerphone Reference Manual
GCA70–245