Clarion FB275BTB Owner's Manual page 24

Handsfree Operations
2-1. Select "LN REDIAL"
3-1. Press the [ ] button again to redial the last
dialed number.
Call via preset telephone numbers
2-1. Select "MEMORY 1" to "MEMORY 6".
3-1. Press the [
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.
24
FB275BT / FB275BTB
] button again to make call.
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 [
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.
] knob clockwise in-