Nokia 3310 Owner's Manual

Important
User Information
This section explains how
to
deactivate theEFR CODEC
should you
find that it is difficult
to make or
receive calls
when travelling and
roaming onto another
network .
" Introduction
The Nokia 3310 (GSM)
comes
equippedthe
latest codec and audio
technology for
superior sound and
voice quality .
Currently, there
are three different
codecs defined
for GSM/PCN :
"

full-rate
(FR)
"

enhanced full-rate (EFR)
"

half-rate
(HR)
The Nokia 3310 phone
can support all
these codecs .
The FR codec is supported
by all GSM
and PCN cellular networks
and
phones .
The network automatically
selects
which codec
is used, FR or EFR (if
supported by
the network) .
The Nokia phone
supplied within this
sales package
has the EFR Codec
activated
to so that you can
automatically
enjoy the benefits of E
FR if
supported byyour network
operator . Currently only
some
networks support
the EFR Codec in
addition
to
the
FR codec .
"
Deactivating/Activating
The EFR Codec
The Nokia N3310 fully meet and
comply with all EFR
Codec and
relevant compatibility
specifications .
However, as a result of
some networks
not yet complying
with the latest
specifications you
may find it
impossible to make
or
receive
calls, if
the EFR Codec is activated,
e .g . when
you are visiting or roaming
in a
foreign network
.
If problemsare encountered in
making a call (with
the display of
"Check operator
services" or another
similar message),
OR receiving calls,
deactivating the EFR Codec
may
resolve the problem . To
deactivate or
reactivate the EFR Codec
follow the
instructions given
in the next section .
Please note that there
is no indication
on the phone as
to whether or notthe
EFR Codec
is activated or deactivated .
a)
To
deactivate
the EFR CODEC
With the
display
clear perform
the
following
key
press sequence :
#3370#
or
#EFRO#
i .e .
press the 'Y'
key, then the "3"
key
and so on . . .
b)
To activate
the EFR
CODEC
With the
display clear perform
the
following
key press sequence
:
*3370# or
*EFRO#
i .e . press the "*" key, then
the "3" key
and so on . . .
Notes to a) and b)
i) Immediately after
pressing *3370#
(or#3370#) the phone
will
automatically power itself off and
then
on again - this is NORMAL and
also
serves
to indicate that
deactivation (or activation) has
occurred . During the automatic power
off/on sequence the LCD display will
become clear, the back lights will
switch off and then the display will
come back on .
ii) If during activation/deactivation
the wrong key is pressed, clear the
wrong
entry by pressing the © key .
iii) If
at anytimeyou choose to quit
the
process then press and hold the
© key .
" Suggested Tip
Important User Information
you may wish to store the
above
activation/deactivation
sequences in
the phonebook .
Name :EFR ON
Number :*3370#
Name :EFR OFF
Number :#3370#
To save the activation sequence
to the
phonebook, the name MUST be
entered first otherwise
deactivation
or activation of the
EFR
Codec
will
occur .

Nokia 3310 Specifications

General

FM radio	No
Ringer type	Monophonic
Networking type	GSM
Operating frequency	GSM 900 / GSM 1800 MHz
Battery type	BLC-2, BMC-3
Standby time (2G)	55 h

Weight and Dimensions

Depth	48 mm
Width	113 mm
Height	22 mm
Weight	133 g