Troubleshooting guide

Using the Phones 3-11
3. Using the
Phones
Voice Transmission
The Optiset E Standard and Advance Plus speakerphone is half duplex,
meaning that it only allows voice transmission in one direction at a
time. Therefore, the user and the other party cannot talk
simultaneously. Also, if the user is speaking he or she may not hear
voice interruptions or background noise, but this does not mean the
call has been disconnected.
The Optiset E Advance Conference speakerphone is full duplex,
meaning that it allows voice transmission in both directions at the same
time. Therefore, the user and the other party can talk simultaneously,
as with a handset.
If the noise level in the room is high, or the other party is speaking too
softly, the user can increase the other party’s voice volume by pressing
the key. If the volume adjustment cannot compensate for the high
noise level, the user can use the handset to continue the conversation.
Since the Optiset E Standard and Advance Plus speakerphone’s
microphone is located underneath the left front side of the telephone,
objects need to be kept away from that area to ensure clear
transmission. When possible, the phone should be placed away from
hard surfaces such as walls or underneath the shelves. Likewise,
objects should not be placed on or near the Advance Conference
microphone located on the lower right corner of the telephone.
Rustling papers near the microphone or pressing keys on the phone
while on a speakerphone call may cause a loud noise to be transmitted
to the other party. Also, users should be in front or slightly to the side
of the telephone rather than behind it to be heard clearly.
Speakerphone Settings
There are three speakerphone settings available for the Optiset E
Standard, Advance Plus, and Advance Conference telephones. These
settings are defined as Mode 1 (default), Mode 2, and Mode 3 and can
be accessed through the Audio Settings option in the OptiGuide menu.
These settings are used to adjust the microphone sensitivity and echo
cancellation if the room condition are such that an echo can be heard
locally when using the speakerphone. It is recommended that you use
the default mode since it provides the best conversation quality.
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