Ericsson F251m User manual

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User guide
F251m terminal
Fixed Cellular Terminal for Small office Home office (SoHo) applications

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1 F251m........................................................................................6
2 SUPPLIED PARTS...................................................................7
3 EXTERNAL CONNECTORS AND LIGHT INDICATORS...7
4 SIM CARD................................................................................8
5 CONNECTIONS.......................................................................8
5.1 Installing the FCT as a telephone line .......................................8
5.2 Installing an FCT connected to a PBX......................................9
5.3 Preparing your FCT.................................................................11
5.3.1 Assembly .................................................................................11
5.3.2 Connect a telephone to the FCT ..............................................12
5.3.3 Switch on the FCT...................................................................12
5.3.4 Enter PIN.................................................................................12
5.3.5 Network search........................................................................13
5.4 Installing the FCT on the wall.................................................14
5.4.1 FCT Location...........................................................................14
5.4.2 Wall mounting.........................................................................15
5.5 Connecting fixed line devices..................................................17
5.5.1 Checking connections..............................................................18
5.5.2 Checking the calls quality:.......................................................18
6 USING TELEPHONES...........................................................19
7 USING CLI DISPLAYS..........................................................19
8 USING FAX MACHINES......................................................21
8.1 Sending a fax:..........................................................................21
8.2 Receiving a fax........................................................................21
9 USING PCS.............................................................................21
9.1 GPRS data access type.............................................................22
9.2 GSM data access type..............................................................23
10 USING PBX ............................................................................25
11 ADVANCED FEATURES......................................................26
11.1 Changing volume.....................................................................26
11.2 Diverting calls (call forward)...................................................26
11.3 Restricting calls (call barring) .................................................27
11.4 More than one call (call wait, call hold, call transfer, multiparty
call)..........................................................................................28
11.4.1 Call waiting service .................................................................29

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11.4.2 Making a second call...............................................................29
11.4.3 Receiving a second call ...........................................................29
11.4.4 Conference calls.......................................................................30
11.4.5 Connecting active and held calls .............................................30
11.5 Phonebook (abbreviated dialing).............................................30
11.6 Voice mail................................................................................31
11.7 Sending tone signals................................................................31
11.8 Controlling call time (minute minder).....................................32
11.9 Emergency number (Hot line).................................................32
11.10 Two voice lines (Alternate Line Service)................................33
11.11 SIM card security.....................................................................33
11.11.1 To manage your SIM card.......................................................33
11.11.2 To unblock your SIM card.......................................................34
11.11.3 To change your PIN.................................................................34
11.11.4 To unblock your SIM card while changing your PIN .............34
12 TROUBLESHOOTING AND FCT INDICATORS...............35
12.1 Light indicators........................................................................35
12.2 Audible tones...........................................................................38
13 FCT TECHNICAL DATA......................................................39
14 FCT ACCESSORIES ..............................................................42
14.1 ISDN Adapter FI12..................................................................42
14.2 Display Adapter DA20............................................................43
14.3 Antennas..................................................................................43
14.4 Power supply ...........................................................................43
15 ANNEX: PC data configurations.............................................45
15.1 Windows 98 GPRS set-up.......................................................45
15.2 Windows NT GPRS set-up......................................................50
16 SAFE AND EFFICIENT USE ................................................57
16.1 Product care.............................................................................57
16.2 Antenna care............................................................................57
16.3 Radio frequency energy...........................................................58
16.4 Electronic devices....................................................................58
16.5 Potentially explosive atmospheres...........................................59
16.6 Power supply ...........................................................................59
16.7 Children ...................................................................................60
16.8 Disposing of the product..........................................................60
16.9 Battery information..................................................................60
16.10 Disposing of the battery...........................................................61
16.11 Moving or storing the FCT......................................................61
16.12 Accessing the battery compartment.........................................62
17 LIMITED WARRANTY.........................................................63

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17.1 Limited Warranty Conditions..................................................63
17.2 Ericsson Warranty ...................................................................63
17.3 What Ericsson will do..............................................................63
17.4 Conditions................................................................................64
18 REGULATORY INFORMATION.........................................66
19 DEFINITIONS ........................................................................68

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Ericsson F251m
First edition, November 2001
This manual has been published by Ericsson Radio Systems, AB, without any warranty.
Improvements and changes to this manual needed by typographical errors, inaccuracies
of current information, or improvements to programs and/or equipment, may be made by
Ericsson Radio Systems, AB at any time and without notice. Such changes will, however,
be incorporated into new editions of the manual.
All rights reserved
© Ericsson España, S.A. Bilbao Technology Centre, 2001
Publication number: EN/LZT 123 6904 R2A
Important information: Some of the services described in this guide might not be
supported by all networks. Please, contact your network operator for information
on different network services operational in your GSM network.

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1F251M
The F251m is a flexible and cost-effective solution for
connecting your SoHo telephone system to the digital wireless
GSM network.
When there is no fixed infrastructure or if you need additional
telephone lines:
install the terminal
run cabling from the F251m to any place within your Small
office Home office (SoHo) and
you will be ready to connect and use standard telephones,
fax machines, computers (Internet) and PBXs
The terminal features the latest technology, which makes it
perfect for everyday communication:
Triple band GSM (E-GSM 900, GSM 1800, GSM 1900)
Telephone line providing high quality speech (EFR), G3
fax and V.90 data transmission
GPRS (General Packet Radio Service), which is designed
to keep you always on line and facilitate rapid transmission
of data (ideal for e-mail and Internet browsing)
HSCSD (High Speed Circuit Switched Data) which further
enhances data transmission
Embedded modem available over the RS232 port
Battery back-up

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2SUPPLIED PARTS
After unpacking check that the following parts are included:
- GSM FCT - Battery cable - AC power supply - Cable
- Antenna - Wall bracket - 5m phone cable - Screws
- User guide
- DA20 (optional) – Alkaline (AA) holder (optional)
3EXTERNAL CONNECTORS AND LIGHT INDICATORS
- GSM radio indicator (greed led)
- Power indicator (red led)
- Telephone interface
- Antenna connector
- Power connector

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- RS232 port
- Maintenance connector
- SIM card holder
4SIM CARD
Your network operator provides you with a SIM (Subscriber
Identity Module) card. The SIM card contains information
about your telephone number and the services included in your
subscription, among other things.
Warning!: switch off the FCT before you insert or remove
your SIM card.
5CONNECTIONS
Warning!: please, before you start any connections refer to
section “Safe and Efficient Use” on page 57 in this guide and
contact your network operator if you have any question.
Warning!: to get a good FCT protection against electrical
discharges and the best audio quality, a good grounding of
the Power Supply is strongly recommended.
5.1 INSTALLING THE FCT AS A TELEPHONE LINE
The FCT is designed to provide a telephone line (RJ11
connector) to which up to 3 Fixed Line Devices can be
connected in parallel. The FCT provides a single telephone
line, which means that only one communication can take place
simultaneously, in the same way as the ordinary fixed line (you
cannot, for example, receive or originate a telephone call while
sending or receiving a fax).
Note: you may be able to connect up to 5 telephone devices
depending on their characteristics. See “Ring Back Test” on
page 17

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Warning!: In order to avoid GSM interferences (noises),
place the FCT at least 3 meters (horizontal) away from
electronic devices, including the telephone equipment
connected to the FCT, or other household electronic devices
such as televisions or radio receivers. The difference in
height should be at least 2 meters (vertical). This is not
necessary if you use telephone devices that fulfil the
Immunity Characteristics settled by the IEC CISPR-24
standard. In this case, a minimum security distance of 20 cm
is recommended.
The FCT is also equipped with an RS232 port that enables you
to use it as a GSM modem for PC Fax, Data and SMS services.
For this specific configuration, please refer to the FCT Data
Kit (see “FCT accessories” on page 41).
5.2 INSTALLING AN FCT CONNECTED TO A PBX
The FCT is designed to provide a telephone line (RJ11
connector) that behaves in the same way as an Analog Trunk.
Generic requirements

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The PBX should meet the following generic requirements for
FCT connectivity:
•The PBX must offer the possibility of analog trunks.
Otherwise, the ISDN FI12 adapter accessory will be
necessary. (see “FCT accessories” on page 41).
•One position of the trunk must be assigned to each FCT
terminal.
•The trunk card must support either Busy Tone Detection
(BTD) or Polarity Reversal Detection on answer and
release.
•The PBX can be programmed to utilize Least Cost Router
(LCR), if available, to automatically choose the FCT trunk
when suitable.
•If the PBX does not offer LCR, choose the FCT trunk
manually with a special dialed prefix.
The F251m terminal is compatible with most analog PBXs on
the market and with most of the available 2B+D ISDN digital
output trunks, via its accessory ISDN FI12 adapter (see “FCT
accessories” on page 41).
FCT connectivity to the ISDN 2B+D trunk of the PBX
Follow the FCT installation instructions next (“Preparing your
FCT” and “Installing the FCT on the wall”) and then refer to
“Using PBX” on page 24.

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Note: it is recommended that there is a minimum distance of 3
meters between the FCT and the PBX. The maximum cable
distance between the PBX and the FCT should not exceed 600
meters, and the connection cable must be at least 0,4 mm2.
Warning!: if you install more than one FCT to a PBX, their
antennas have to be separated with a distance of 20 cm in
height or 2 meters in horizontal.
5.3 PREPARING YOUR FCT
You need to follow the following procedure before you install
the FCT on the wall and make all definitive connections.
Warning!: switch off the FCT before you insert or remove
your SIM card or connect any device to the FCT.
5.3.1 Assembly
1. Connect the antenna
2. Remove the front-cover. Open the SIM card holder and
place the SIM in the right position.

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3. Close the SIM card holder and place the front cover back in
previous position.
5.3.2 Connect a telephone to the FCT
Connect a fixed telephone to the FCT telephone line.
Note: You will use this telephone for dialing the PIN number.
5.3.3 Switch on the FCT
Connect the Power Supply. The FCT switches on
automatically and the Green and Red light indicators start
flashing.
5.3.4 Enter PIN

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Most SIM cards are protected with a PIN (Personal Identity
Number), which you get from your network operator and
which you need in order to access the network.
If the SIM card is not protected by the PIN code then you do
not need to enter the PIN and the FCT starts automatically the
Network Search.
If the SIM card is protected by the PIN code, then the Green
and Red light indicators flash simultaneously.
Note: if you have the DA20 display adapter accessory (See
“FCT accessories” on page 41), an “Enter PIN” message will
show on your display.
Follow the following procedure to enter the PIN:
Pick up the telephone and dial the PIN code. Press the #
key on your telephone or wait until you hear a beep tone.
If you make a mistake while entering your PIN, hang up
immediately the telephone down and try again.
If the PIN is correct, you will hear a beep over the telephone
(affirmative indication tone). If it is incorrect, a loud and low
tone will sound (error indication tone).
If your PIN is entered incorrectly three times, the SIM card
will be blocked. If this happens, you can unblock it by using
your PUK (Personal Unblocking Key), which you also get
from your network operator. See “SIM Card Security” on page
32
Note: once you have entered the PIN code for the first time
you will not have to enter it again unless you change your SIM
card. The FCT performs this operation automatically in case
of power failure.
5.3.5 Network search
After you have switched on your FCT and entered your PIN,
the FCT automatically searches for a network.
Note: if the Red Light is off, there is a problem with the power
supply. See “Troubleshooting and FCT indicators” on page 34

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When a network is found, the Green Light Indicator switches
on or flashes depending on the GSM signal strength. (See
Light Indicators on page 6).
Note: if the Green Light is off you do not have access to the
GSM network at your present location.
Now you have prepared the FCT for wall installation. Please,
follow the instructions below for complete wall installation.
5.4 INSTALLING THE FCT ON THE WALL
5.4.1 FCT Location
The GSM signal strength present at the FCT location affects
the performance of the unit. The stronger the GSM signal is
the better for the FCT performance.
Tip: test several potential locations by moving the FCT while
looking at the Green Light indicator. Select the location where
the Green Light is steady, or the location with the highest
amount of flashes.
Note: moving the FCT as little as 20 cm can affect the GSM
reception quality.
Installation Location Testing
Number of Green Light flashes Location status
0 Unacceptable
1 - - - Acceptable
2 - - - - - - Good
3 - - - - - - - - - Very good
Steady ---------------------- Excellent
Please consider the following recommendations:
Select always an Indoor location, preferably close to a
window and the roof. Generally, you will experience better
GSM signal strength in these places.

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Do not install the FCT in a bathroom, wet or damp
basement or in an outdoor location.
Do not install the FCT on walls or rooms that contain large
amounts of metal, steel or wiring.
Do not expose the FCT to extreme temperatures (near
radiators, cooling vents, etc).
If you experience poor reception quality, an outdoor antenna
may result in improvement. See “FCT accessories” on page 41
5.4.2 Wall mounting
Please proceed as indicated in the following picture.
1) Fix the wall mounting bracket on the wall
2) Insert the FCT in the wall mounting bracket

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3) Press the FCT down
Warning!: once you have fixed the FCT to the wall and
switch it on, check the final status of the Red and Green
lights. If the Red and/or Green Lights are off, there is a
problem with the power supply or the GSM signal. See
“Troubleshooting and FCT indicators” on page 34
Now the FCT is ready for connecting devices and make calls.

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Note: if you want to remove the FCT from the wall bracket
then you have to press the flap (step 1) as indicated in the
following picture. And then push the FCT upwards (step 2).
5.5 CONNECTING FIXED LINE DEVICES
Connect the fixed line devices to the FCT (Telephone Line
connector) with telephone wire in the same way as with an
analog telephone line.
Fixed line devices are connected in parallel to the telephone
cable. You can connect the devices directly to the FCT
Telephone line connector (RJ11) or make an internal telephone
wiring, use RJ11 splitters or similar connectors.
GSM network
RS232

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Telephone
Display
Fax
PC modem
Note: remember that you do not have to worry about the two
wire Telephone cable polarity when making connections; if the
two wires are reversed the FCT and the fixed line devices are
not affected at all.
Tip: if your house or company is already wired with telephone
cable, you only need to connect the cable to the FCT RJ11
connector and your telephone line will be up and running in all
rooms.
Note: it is strongly recommended that the telephone wire is
installed indoors in order to avoid lightning damage.
Note: the telephone wire should not exceed 600 meters. Larger
distances can be achieved by using high quality telephone
wire.
5.5.1 Checking connections
Once the fixed line devices (1 up to 3) have been connected,
make the “Ring Back Test” as follows in order to check the
connections:
Lift one telephone and dial **#10#. You will hear a beep
tone (the FCT Red and Green light indicators will start
flashing -three flashes synchronized).
Hung the telephone up and check if all the connected
telephones are ringing.
Lift any of the telephones connected and then pick it up
again. The ringing will stop (the red and green lights will
go to normal operation mode).
Tip: If any of the telephones has not been ringing, check your
telephone cable layout and connections to make sure that all
devices are properly connected.
5.5.2 Checking the calls quality:

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Use any of the telephones connected to the FCT and make a
call. Check the speech quality and ask the receiver to call you
back to confirm that you can also receive calls.
If you have problems, see “Troubleshooting and FCT
indicators” on page 34
6USING TELEPHONES
Fixed telephones connected to the FCT telephone line work in
the same way as if they were connected to a Fixed Network.
Note: you can also benefit from some FCT functionality that
you do not usually have on your fixed network. See “Advanced
features” on page 25
You can find more detailed information about the tones that
the FCT sends on “Audible Tones” page 37
7USING CLI DISPLAYS
Devices for displaying incoming numbers (telephones with
display, external displays, etc.) can be directly connected to the
FCT line interface in the same way as an ordinary telephone. If
your subscription includes the Calling Line identification
(CLI) service and the caller´s network sends the number, the
FCT sends the caller´s number towards your CLI Display.
In general, your FCT will be programmed (according to your
country specifications) to send the CLI information with the
right standard so that your CLI device works properly.
Refer to your CLI Telephone or Display User Guide for
understanding your CLI indications.
Tip: if you run the “Ring Back Test” on page 17 (lift the
telephone, dial **#10# and hung up), you can check if the
following number “1234567890” appears on your CLI display.
If not, the FCT is not using the right standard.
If you experience that your CLI device is not showing the
calling numbers, you may need to change the FCT settings.
If you know the CLI standard used by your CLI device (check
the user guide from this device), you can dial directly the
specific sequence for this standard (see table below) from a
DTMF (Pulses) telephone connected to the FCT.

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Otherwise, you can alternatively dial each of the following
sequences and check each time if the numbers appear on your
CLI display by conducting the “Ring Back Test” after a
specific sequence is dialed. You should find that one of the
three sequences allows you to visualize the number
“1234567890” on your display when the “Ring Back Test” is
conducted.
CLI standard Dialing sequence
ETSI DTMF **000*1#
ETSI V.23 **000*2#
Bellcore **000*3#
In order to disable the CLI Display functionality (not to see
CLI information anymore), dial **000*0# from a DTMF
(Pulses) telephone connected to the FCT.
Tip: if you do not want your telephone number to appear at the
caller’s location, you can dial the #31# before the phone
number you are going to call (B-number) (#31#B-Number)
To find out about the DA20 Display accessory, please check
“FCT accessories” on page 41.