24 english, Microphone, Handfree volume – Clarion FB275BTB User Manual

Page 24: Adjusting the volume for handsfree, Handsfree operations

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24

English

FB275BT / FB275BTB

Call via preset telephone numbers

2-1. Select “MEMORY 1” to “MEMORY 6”.
3-1. Press the [ ] button again to make call.
Alternatively, user can make outgoing call directly

by pressing the corresponding preset telephone

numbers.
1. Press the [ ] button to enter Telephone

mode.

2. Press the corresponding [

DIRECT] button to

make outgoing call.

Note:

The preset telephone numbers will be the same for

all paired devices.

Alternatively, you may also make a call by us-

ing your phoneʼs keypad. However, it is recom-

mended to always make a call from the main unit

as some phones may not work well using the

phoneʼs keypad with this unit.

Microphone

The unit is fitted with an internal microphone that

should provide acceptable performance when

fitted to vehicles with low levels of background

noise. For optimum performance Clarion recom-

mends the use of an external microphone fitted

as near as possible to the driver.
Please refer “Selecting microphone input” on

page 30 for switching to internal/external the mi-

crophone.

Handfree Volume

The unit implements an acoustic echo canceller

to reduce the echo heard by the remote caller.

Under normal circumstances the unit operates in

full-duplex mode meaning that both parties can

speak at the same time.
If the volume in the vehicle is set too high, the

echo canceller will revert to half-duplex mode

when only one party can talk at a time. The vol-

ume should be adjusted to be just loud enough.

The unit also implements Noise Dependent Vol-

ume that increases the volume as the noise in

the vehicle increases.

Adjusting the volume for handsfree

Turning the [

] knob clockwise in-

creases the volume; turning it counterclockwise

decreases the volume.
VOLUME 1” to “VOLUME 16” will be displayed

depends on the volume level.

Factory default setting for volume is “VOLUME

8”.

When the unit is connected to a mobile phone

and a call is in progress, turning off the vehicle

ignition key (“ACC” or ACCESSORY) switch will

not end the call. The unit will remain active un-

til the call has ended at which point the unit will

power OFF. It is therefore safe to pull over and

stop the engine during a call without the inconve-

nience of dropping the call.

Handsfree Operations

2-1. Select “LN REDIAL
3-1. Press the [ ] button again to redial the last

dialed number.

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