2N ATEUS User manual

ATEUS ® - GSM ISDN GATEWAY Lite
User’s Manual
Version: 1.5

1
Dear customer,
We congratulate you on purchasing your ATEUS ® - GSM ISDN GATEWAY Lite product. This
new product was developed and produced with emphasis on maximum utility value, quality and
reliability. Our wish is to make you satisfied with the ISDN GSM gateway completely and for a
long time.
! Important !
• The manufacturer is gradually improving the control program that is included in this product
(referred to as firmware). The used ISP (In System Programming) technology gives you the
possibility to store the most recent control program in your GSM ISDN gateway by means of
a standard computer. The most recent version of the program together with all that is
necessary can be found in www.2n.cz and necessary instructions in the chapter
“Upgrading the control program” of this manual. It is recommendable to use the most
recent version of the program – thus, you will avoid unnecessary encounters with possible
shortcomings that have been eliminated already.
• If you program parameters of your GSM ISDN gateway by means of your computer, you will need
the “ISDN GSM – program“. You will find the most recent version of this programming tool in
www.2n.cz as well.
• In www.2n.cz you will also find the most recent version of this manual in the popular PDF
format. We recommend you to use it especially in connection with the control program
upgrade since the new functions are explained here.
• Before you start installing this product, check whether the delivery is complete with the
following packing list and read this manual thoroughly. The manufacturer cannot be held
responsible for any damages that occurred due to incorrect use of this product in
contradiction to this manual. The guarantee terms do not cover damages of the product
caused by rough handling, incorrect storage or by exceeding the quoted technical
parameters.
• This manual is very detailed and it also contains sections that are not essential for the basic
installation as well as sections dealing with other types of GSM ISDN gateways. This is why
you should pay attention to information which sections are essential for you and which are
not. It will save your time.
• Preliminary information about functions that are not available yet are differentiated by light
grey background or by grey letters instead of black ones.

2
Packing list
Parts that make up the ATEUS ® - GSM ISDN GATEWAY Lite product and its
accessories correspond to the following list:
Item Quantity Note
GSM gateway – model corresponding to the ordering no.,
see the data plate at the back side of the GSM gateway 1 pc
Mains adapter 1 pc 1)
Serial cable 1 pc
ISDN cable 4-wire (RJ-45) 1 - 2 pcs 1)
Antenna 1 - 2 pcs 1)
Wall mounting bracket 1 pc
Dowels 2 pcs
Wood screws 2 pcs
This manual 1 pc
Warranty certificate 1 pc
A floppy disk or a CD-ROM with software 1 pc 2)
Notes:
1) Depending on type
2) Delivered software:
• GSM program
• SMS program
• PC DISA message loading program

3
CONTENTS
1. INTRODUCTION ...........................................................................................4
1.1. PURPOSE......................................................................................................................................4
1.2. HOW TO SAVE TELEPHONE FEES ....................................................................................................4
1.3. OTHER BENEFITS AND POSSIBILITIES OF USE ..................................................................................5
1.4. SAFETY INSTRUCTIONS CONNECTED WITH HIGH-FREQUENCY RADIATION ..........................................5
2. GETTING TO KNOW ATEUS ® - GSM ISDN GATEWAY LITE ..............................6
2.1. QUICK INSTALLATION ....................................................................................................................7
3. BASIC DESCRIPTION OF ATEUS ® - GSM ISDN GATEWAY LITE INSTALLATION .........................8
3.1. CORRECT POSITIONING..................................................................................................................8
3.2. CONNECTING AN EXTERNAL ANTENNA ............................................................................................9
3.3. SETTING AND INSTALLING THE SIM CARD .......................................................................................9
3.4. INSERTING SIM CARD INTO ATEUS ® - GSM ISDN GATEWAY LITE ............................................11
3.5. POWER SUPPLY CONNECTION ......................................................................................................12
3.6. CONNECTION TO YOUR PC...........................................................................................................12
3.7. CONNECTING NT AND TE CONNECTORS.......................................................................................13
3.8. SIGNALLING LED LAMPS .............................................................................................................14
4. POSSIBLE CONNECTION TOPOLOGIES OF YOUR ISDN EQUIPMENT .......................15
4.1. POINT-TO-POINT (EUROISDN WITH DDI) ......................................................................................15
4.2. POINT-TO-MULTIPOINT (EUROISDN WITH MSN) ...........................................................................15
5. WAYS OF CONNECTING ATEUS ® - GSM ISDN GATEWAY LITE.......................16
5.1. ROUTING PRINCIPLE ....................................................................................................................16
5.2. CONNECTING AN ISDN TELEPHONE SET TO ATEUS ® - GSM ISDN GATEWAY LITE ....................17
5.3. CONNECTING ATEUS ® - GSM ISDN GATEWAY LITE ...................................................................18
5.4. CONNECTION OF MORE ISDN TERMINALS TO MSN ISDN LINE .....................................................19
5.5. OUTGOING CALL VIA GSM GATEWAY CONNECTED TO PBX ...........................................................20
5.6. INCOMING CALLS FROM GSM AND ISDN ......................................................................................21
5.7. RECORDING DISA MESSAGE .......................................................................................................23
5.8. RECORDING CALLBACK MESSAGE ...............................................................................................24
6. INSTRUCTIONS TO USE ISDN GSM LITE PROGRAM.......................................... 25
6.1. INSTALLING ISDN GSM LITE PROGRAM .......................................................................................25
6.2. RUNNING ISDN GSM LITE PROGRAM ..........................................................................................25
6.3. CONNECTING ATEUS ® - GSM ISDN GATEWAY LITE TO YOUR PC.............................................26
6.4. MAIN MENU AND BUTTON BAR ......................................................................................................26
6.5. CONFIGURATION .........................................................................................................................32
7. PC-BASED SMS SENDING AND RECEIVING ..................................................... 50
8. CONFIGURATION AND COMMUNICATION USING A STANDARD TERMINAL .................51
8.1. TERMINAL COMMANDS.................................................................................................................53
9. SAVING INFORMATION ON MADE CALLS (CDR)........................................54
10. TECHNICAL PARAMETERS ......................................................................... 55

4
1. Introduction
1.1. Purpose
• ATEUS ® - GSM ISDN GATEWAY Lite is mainly designed to be connected to any ISDN
PBX. It enables direct calling to the GSM network. It can also be used in connection with an
ISDN phone set, with a phone set via a terminal adapter, with a coin payphone via a terminal
adapter, etc.
• Its basic function is the voice mode, i.e. outgoing or incoming calls. The gateway is equipped
with all functions necessary for this use and it provides maximum comfort in this mode.
• Besides, it is possible to use it (in connection with a PC) to receive and send SMS. For
remote control you can use function “Diagnostic SMS messages”. These are supplementary
functions that increase the utility value of the gateway.
• No additional equipment (an external GSM phone, etc.) is necessary for the operation. Even
a layman can install the gateway. The programmable parameters are pre-set to ideal values.
Having connected the ISDN line, antenna, supply and having installed the SIM card you can
start using the equipment immediately.
1.2. How to save telephone fees
• By connecting ATEUS ® - GSM ISDN GATEWAY Lite to your ISDN PBX you will be able to
perform outgoing calls to mobile networks directly. Thus, you will save telephone fees for the
connection between the public telephone system and the mobile network. Calls coming
from the mobile phones of your area workers will be cheaper as well.
• For the GSM gateway you can use the most convenient tariff rate of your GSM provider
since calls of all users of your GSM gateway are added together.
• If you use a voice box – a GSM service, you pay for collecting your voice messages but if you
connect your own voice box to the ISDN GSM gateway you do not pay anything for listening
to voice messages and you do not pay anything for reading messages either.
• With your GSM gateway you can restrict calling to selected numbers. You will not pay for
those calls you restrict.
• You can also obtain a record on the time and length of selected calls. You can easily find out
why your telephone bill is higher than it should be.
• You can use the ISDN services together with the GSM services.
• The function of intelligent routing of incoming calls makes connection of incoming calls faster
and provides a higher comfort of calling.
• You can connect the GSM gateway to your PBX with easy control of call by password.
• Inteligent function CALLBACK enables to you and your workers making calls on GSM
gateway’s SIM cards charges.
• Auto CLIP routing enables inteligent management of incomming calls from GSM networks
• Comfortable remote access through GSM with the diagnostic SMS sending option.
• The gateway enables all kinds of ISDN connection.
• DISA voice message with a possibility to record and edit the welcome message easily.
• Possibility to use conditioned and unconditioned call forwarding.
• Possibility of automatic SMS message sending with a defined text in case that the call is
no aswered (SMS message can hold calling party number)

5
1.3. Other benefits and possibilities of use
• While phoning you are not exposed to a direct impact of a high-frequency electromagnetic field
as in the case of a mobile phone.
• You can also connect a coin payphone via a terminal adapter – the ISDN GSM gateway can
send tariff impulses. You may determine the price for various kinds of connection yourselves
(with a profit).
• You can use the ISDN GSM gateway in your company network together with the MobilChange
application
1.4. Safety instructions connected with high-frequency radiation
!
!!
!
It is forbidden to use any transmitters, including the ISDN GSM gateway in
such areas where explosives are used, e.g. near quarries.
!
!!
! It is also forbidden to use mobile phones at petrol stations which holds
good for the ISDN GSM gateway too.
!
!!
! In medical facilities the ISDN GSM gateway may influence operation o
f
sensitive life-maintaining equipment. This is why it is forbidden to use
mobile phones as well as the GSM gate here.
!
!!
! In general any prohibition to use mobile phones due to radiation of high-
frequency energy is valid for ISDN GSM gateways as well.
!
!!
! If necessary, you may install the GSM port in a safe distance (e.g. in a
building next-door) and bring an ISDN line to the forbidden building from
the ISDN GSM gateway.
!
!!
! Although the ISDN GSM gateway is not designed for use in planes or cars
the restriction and regulations for ISDN GSM gateways are valid here too.

6
2. Getting to know ATEUS ® - GSM ISDN GATEWAY Lite
Fig.1: External description of connectors, signalling LED
lamps and functional parts of the ISDN GSM GATEWAY Lite
Wall mounting bracket
SIM card holder 1
SIM card holder 2
Connector for GSM 2
antenna
Reset button
Connector for GSM 1
antenna
RS232 connector
TE1
NT1
Power connector

7
2.1. Quick installation
• Correct position - ATEUS ® - GSM ISDN GATEWAY Lite is designed for a vertical surface
Installation. Fix the bracket that is a part of the delivery to the wall and hang the gateway
onto it. Recommended working position and other more detailed recommendations are
described in chapter 3.1.
• Connecting cables - Use ISDN cables to connect the gateway to your ISDN PBX (or other
ISDN terminals). Connect the cables from your ISDN connection to the gateway. More
detailed information on correct connections are found in chapter 3.7.
• Antenna connection – Use the SMA antenna connector to connect either the entire
antenna or the cable from an external antenna you have installed in a place with a good
GSM signal (see 3.2).
• PC connection – To be able to adjust configuration of your gateway by means of the ISDN
GSM program, you must connect your gateway to a PC. The connection is performed by
means of a “not crossed” (1:1) extension cable – the same as for connecting PC to any
external modem (see 3.6).
• Power supply – The packing contains a mains supply adapter. Connect the connector of
the adapter to the gateway and plug it in the mains. The gateway is switched on immediately
(see 3.5 page 12).
• Inserting SIM cards – To be able to insert a SIM card you should use a suitable object to
press the micro-button of the microform reader to push the drawer out. Take the drawer out,
insert the SIM card into is and slide it back into the reader (see 3.3 and 3.4).
• Installing the configuration program – Run the installing file from the installation CD on a
connected PC and install the ISDN GSM configuration program (see 6.1).
• Configuration program – Run the installed ISDN GSM program, set the communication of
the serial channel where the gateway is connected. Start communication of your PC with the
gateway. More detailed information see 6.3.
• Configuring ATEUS ® - GSM ISDN GATEWAY Lite – Using the configuration program you
can now start adjusting parameters that determine the behaviour of your gateway. The
adjusted parameters include e.g. ISDN parameters, basic GSM parameters and tariffs,
routing, restrictions and system parameters. Set the parameters that correspond to the
required function of your gateway and send the configuration data to the gateway by means
of the serial channel. You can find some more detailed information on the configuration
program in chapter 6.
*To select basic settings for the ISDN GSM GATEWAY Lite, you can use a guide (installed together with
the ISDN GSM program).

8
3. Basic description of ATEUS ® - GSM ISDN GATEWAY Lite
installation
3.1. Correct positioning
• ATEUS ® - GSM ISDN GATEWAY Lite is designed to
be installed on a vertical surface. The required
working position is shown in fig. 2.
• The ISDN GSM GATEWAY Lite may be operated in
another working position (e.g. lying on a table) just
temporarily – e.g. when being quickly tested during
servicing.
• The range of acceptable working temperatures and
humidity is quoted in the “Technical parameters“
chapter.
• The ISDN GSM GATEWAY Lite must never be
operated in places with direct sunshine and near
sources of heat.
• If acceptable working temperature is exceeded it
does not have an immediate impact on the ISDN
GSM GATEWAY Lite function but it may result in
quicker ageing and loss of reliability.
• The ISDN GSM GATEWAY Lite is designed for use inside buildings. It must not be exposed to
rain, leaking water, condensed humidity, fog, mist, etc.
The ISDN GSM GATEWAY Lite must not be exposed to aggressive gases, vapours of acids,
solvents, etc., nor it must be exposed to aggressive liquids, e.g. during cleaning of the cover.
• The ISDN GSM GATEWAY Lite should not be used in high-vibration environment as means of
transport, plant-rooms, etc.
• Over and under the ISDN GSM GATEWAY Lite there must be a free space for cables and the
ventilation air that dissipates heat generated during operation.
• The ISDN GSM GATEWAY Lite must be positioned with regard to GSM signal quality.
• If you put the ISDN GSM GATEWAY Lite or antenna in an unsuitable position near TV, radio or
other receivers or other appliances sensitive to the high-frequency field, their function may be
impaired.
• The ISDN GSM GATEWAY Lite antenna transmits high-frequency energy and this is why it
should not be very close to human body. The health risk is higher than in the case of mobile
phones as a GSM gateway usually transmits very often if more people use it for calling.
Fig.2: The require
d
working position

9
3.2. Connecting an external antenna
Use the SMA antenna connector to connect
either the entire antenna or the cable of an external
antenna you have installed in a place with a good GSM
signal. The antenna should be in a vertical position.
The parameters of the antenna and cable are quoted
in Technical parameters. Tighten the antenna
connector lightly with your hand, do not use a wrench!
For signal strength see 6.4.3.
Note: Models with one a GSM module have just
one connector for one external antenna.
3.3. Setting and installing the SIM card
Provider selection, SIM card type
For the function of the ISDN GSM gateway you
need a SIM card of a GSM provider working in the band
of 900 MHz,1800 MHz / 850 MHz and 1900MHz.
ATEUS ® - GSM ISDN GATEWAY Lite with SIM cards,
which are supported by Siemens mobile telephones
and equipment. To make sure that your provider‘s SIM
card is supported by the ISDN GSM gateway, try to
use this SIM card in a Siemens mobile telephone (C35,
e.g.).
Blocking entering PIN (optional)
The ISDN ATEUS ® - GSM ISDN GATEWAY Lite is set for entering PIN automatically by
the manufacturer. You may block entering PIN in your SIM card (by means of a mobile phone
where you insert your SIM card for this operation). If you do so, it does not matter how the ISDN
GSM gateway is programmed or if there is a PIN in its memory or not. If you do not do so, the
ISDN GSM gateway will require entering PIN after the first switching on by lighting the signalling
LED’s. If you enter the correct PIN, it will store it in its memory and enter it automatically after that.
Note: If a SIM card with active PIN is inserted and the PIN is not entered, the GSM module LED
flashes 1:1 in red.
PIN is entered from an ISDN phone (connected to the ISDN GSM gateway), see later, or
using the ISDN GSM configuration program (connected to the ISDN GSM gateway), see 6.4.2:
PIN (PUK) entering from ISDN telephone*:
To enter PIN:
Procedure Description of steps
Pick up the earpiece, dial the service prefix (default ),
dial (PIN entering service).
or Press or to select GSM 1 or GSM 2 module.
PIN Enter the PIN. If it is shorter than eight digits, then press to
quit.
PIN Re-enter the PIN.
Fig.3: Connecting an external
antenna
Konektory antén
antenna

10
Hang up.
To enter PUK (use if you have confused three times or forgotten the PIN):
Procedure Description of steps
Pick up the earpiece, dial the service prefix (default
), dial (PUK entering service).
or Press or to select GSM 1 or GSM 2 module.
PUK
Enter the PUK. If it is shorter than eight digits, then press
to quit
PUK Re-enter the PUK.
Hang up.
* Entering PIN and PUK codes you are guided by voice instructions.
Setting GSM services (voice box, routing)
Before you install the SIM card you have to decide whether you want to use the incoming
call routing services provided by GSM networks (in case of busy line, absence,
unavailability…). In connection with a PBX it is usually convenient to switch all routing off
(especially to the provider’s voice box) and use your own voice box. If you have more GSM
gateways with one PBX, you can route calls from one gateway to another in case one of them is
engaged. (Activation and deactivation of different call forwarding modes is more advantageous
with the SIM card inserted in a standard GSM telephone).
Setting roaming parameters (calling via foreign GSM networks)
ATEUS ® - GSM ISDN GATEWAY Lite is pre-set by the manufacturer with switched off
roaming (it can be set in the configuration program – see 6.5.3.1 page 35). You hardly ever
travel with the ISDN GSM gateway and in border areas roaming would represent a risk that e.g.
in case of a local service failure the gateway would log in a foreign network and the price of
calls would rise significantly. If you want to authorise roaming and prefer some networks, fill in a
list of preferred GSM networks by means of a mobile phone and then, when programming the
GSM gateway do not forget to authorise roaming.

11
Fig.4: Inserting SIM cards into the ISDN GSM gate
Fig.4: Inserting SIM cards into the ISDN GSM gate
3.4. Inserting SIM card into ATEUS ® - GSM ISDN GATEWAY Lite
If you want to insert a SIM card,
you should use a suitable object to
press the yellow micro-button to
push the drawer out. Take the
drawer out, insert the SIM card and
slide it back. You can insert a SIM
card when the gate is switched on
but have to reset the gate.
Insert SIM card
SIM card
provider 1
SIM card
p
rovider 1
Take the SIM holder out

12
3.5. Power supply connection
• Check whether the voltage in your mains corresponds to the data on the data plate on the
product.
• Use the supply adapter that is a part of your ISDN GSM GATEWAY Lite package. *
• Check whether you have connected an antenna. If you connect power supply to the gateway
without connecting an antenna, the GSM module transmitter might get damaged.
• Plug the adapter connector in the gateway (see the lower front connectors – fig. 1). After a
moment the green “Power” LED must light up.
*Rack version of GSM gateway has powesuppy on back bus.
3.6. Connection to your PC
The GSM gateway works in the data mode as a modem: the connector has exactly the
same connection as a normal external modem and it is shown in fig. 6. To connect the PC you
should use a so-called not crossed (1:1) “extending” cable – the same as for connecting a PC to
any external modem. Maximum length of the cable is a few meters. (Connect the cable to the
PC serial COM port.)
Fig.5: Connecting supply
Fig..6: Connection of the ISDN GSM gate to a PC via RS232
1 DCD
2 RxD
3 TxD
4 DTR
5 GROUND
6 DSR
7 RTS
8 CTS
9 RI

13
3.7. Connecting NT and TE connectors
The connection diagrams of NT or TE connector are shown in figs. 7 and 8. Individual
connections may be selected in accordance with chapter 5 “Ways of connecting ATEUS ® -
GSM ISDN GATEWAY Lite“ while you should know the connection topology of your ISDN
equipment, see chapter 4. The configuration of pins of RJ-45 connectors for TE and NT is
shown in figs. 10 and 11.
Fig.9: Connector placing on the bottom side
6 Rx
5 Tx
4 Tx
3 Rx
2 ne
p
oužit
1 ne
p
oužit
8
7
6 3
2
1
8 nepoužit
7 ne
p
oužit
5
4
Fig.11: Connector wiring for NT
interface
6 Tx
5 Rx
4 Rx
3 Tx
2 ne
p
oužit
1 ne
p
oužit
8
7
63
2
1
8 ne
p
oužit
7 ne
p
oužit
5
4
Fig.10: Connector wiring for TE
interface
ISDN terminal
NT ISDN net
Fig 8: Connection of connectors
ISDN network
1 not connected
2 not connected
3 Tx
4 Rx
5 Rx
6 Tx
7 not connected
8 not connected
1 not connected
2 not connected
3 Rx
4 Tx
5 Tx
6 Rx
7 not connected
8 not connected
NT PBX

14
3.8. Signalling LED lamps
3.8.1. Charts – basic functions of LED lamps
Status of LED lamps for ISDN
Each of the two lines of opposite direction (TE1/NT1 ; TE2/NT2) has a LED lamp of its own to
indicate the status of B channels on the line.
Status BRI ISDN Line Colour / Status of LED diode
Free Light off
1. B-channel busy Green / light on BRI1
2. B-channel busy Green / light on BRI2
TE1 / NT2 not connected Red / Light BRI2
Statuses of LED lamps for GSM
Each module has a LED lamp of its own to indicate its status.
Module status LED GSM 1 and GSM 2 Colour / Status
Module not available GSM 1 and/or GSM 2 Red on
Wrong firmware in module Both GSM module LEDs Orange flashing slowly 1:1
Module programming Both GSM module LEDs Orange on
No SIM inserted GSM 1 and/or GSM 2 Red flashing slowly 1:3
PIN request GSM 1 and/or GSM 2 Red flashing slowly 1:1
PUK request GSM 1 and/or GSM 2 Red flashing quickly 1:1
Module looking for network GSM 1 and/or GSM 2 Green flashing slowly 1:3
Module logging into network GSM 1 and/or GSM 2 Green flashing quickly 1:1
Module logged in network GSM 1 and/or GSM 2 No light
Active call of the module GSM 1 and/or GSM 2 Green on
Fig.12: Signalling LED lamps

15
ISDN
net
Public
phone net.
NT 1
Local
phone
lines
ISDN sets
PBX
Up to 8 ISDN equipments
Telephone
4. Possible connection topologies of your ISDN equipment
4.1. Point-to-Point (euroISDN with DDI)
To be able to configure your ISDN GSM GATEWAY Lite you have to know the
connections of your ISDN equipment. The first option is the Point-to-Point connection
(euroISDN with DDI) as shown in fig. 13. You can recognise a line in the Point-to-Point
configuration easily because there is no ISDN telephone, modem, etc. connected to it.
ISDN
Net
Public
phone net.
NT 1
Local
phone
lines
ISDN sets
PBX
Telephone
4.2. Point-to-Multipoint (euroISDN with MSN)
Another option how to connect your ISDN equipment is Point-to-Multipoint. ISDN
telephones, modems, etc. can be connected directly to this ISDN line.
Note: For details on the ISDN line type see the registration sheet of your ISDN provider or
contact your telephone network administrator.
Fig.13: Point-to-Point connection
Fig.14: Point-to Multipoint connection

16
5. Ways of connecting ATEUS ® - GSM ISDN GATEWAY
Lite
The ISDN GSM gateway is used to route calls from ISDN lines to GSM modules.
The gateway can be connected as follows:
• Gateway as NT ( simulates a network ) in configuration Point-to-Point and Point-to-Multipoint.
• Gateway as TE ( simulates a phone) in configuration Point-to-Point and Point-to-Multipoint.
Among other things, it supports the following functions:
• Routing calls depending on called destination via the provider of this destination
• Call forwarding
• Intelligent incoming CLIP routing
• Outgoing time LCR routing
• DISA (tone DDI)
• DISA to GSM (dial-in tone from ISDN TE ports to GSM networks)
• Callback to GSM networks
• Direct call to operator
• SMS send/receive
5.1. Routing principle
The ports in the gateway are logically divided into internal and external ones (according to
configuration). A call from an internal port is routed to GSM port according to the routing
algorithm. A call from an external port is routed directly to the internal port (TE1/NT1) or DISA
(tone DDI) is activated, or it is rerouted to the operator 1 or 2. Further, an incoming call may also
be routed according to CLIP (incoming call number). ISDN port is internal, GSM ports are
external.
The routing algorithm recognises incoming call types, the current time rate, day in a week,
or free minutes of the GSM provider and routes outgoing calls accordingly.
If an outgoing call is routed through a busy port, another available port is dialled
(depending on configuration). If none of allowed outgoing ports is free, the outgoing call is
rejected. For details on this function see section ISDN GSM program, rates (6.5.7).

17
5.2. Connecting an ISDN telephone set to ATEUS ® - GSM ISDN GATEWAY
Lite
The TE1 port are connected to the ISDN. If the network is not connected, the telephone
must by supplied by an external supply adapter that simulates the voltage of the ISDN. The
mains supply adapter that simulates the ISDN voltage may be ordered with its ordering no.
502000.
Fig.15: Connecting an ISDN phone set to the port with a
possible simulation of supply voltage for ISDN phones
Power adapter ISDN
GSM
gate
GSM
network
ISDN terminals

18
5.3. Connecting ATEUS ® - GSM ISDN GATEWAY Lite
The 502081, 502083, 502085 models contain the following interfaces:
1 connector for a GSM module antenna
1 RJ45 TE/NT connector to connect NT1/TE1
1 RS232 serial interface connector to communicate with a PC.
The 502082, 502084, 502086, 502088 models contain the following interfaces:
2 connectors for GSM module antennas
1 RJ45 TE connector to connect NT1
1 RJ45 NT connector to connect TE1
1 RS232 serial interface connector to communicate with a PC.
As you can see in fig. 16 and 17, you can connect the gateway to your PBX by using TE or NT.
In this case is necessary to set-up your PBX to route GSM calls to the specific port. In
connection with this the probability that fees for telephone connections between the public and
GSM networks are saved will be higher as well
fig. 16: Connection of gate in NT mode fig.17: Connection of gate in TE mode
ISDN
net
ISDN
net
ISDN
GSM
g
ate
ISDN
GSM
g
ate
ISDN terminals ISDN terminals