Topex Bytton HSDPA User Manual
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Topex Bytton HSDPA User Manual

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TOPEX Bytton HSDPA
Router WIFI 3G
User's Manual
2008

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Summary of Contents for Topex Bytton HSDPA

  • Page 1 TOPEX Bytton HSDPA Router WIFI 3G User’s Manual 2008...
  • Page 2 Currently, 25 percent of Topex personnel are part of R&D Department and their number is increasing. TOPEX also considered the training and the service as an integral part of the solutions it provides. Therefore, comprehensive training sessions are held at the Topex factory, complimentary for the company’s clients.
  • Page 3 TOPEX BYTTON HSDPA User’s Manual Congratulations! Thank you for buying the TOPEX Bytton product and congratulation for your wise choice. BYTTON HSDPA has the following features: • Voice and data interface – simultaneous voice and high speed data transmission – use a single mobile connection for both voice calls and data transfers, while browsing or downloading you can still make important phone calls •...
  • Page 4 TOPEX BYTTON HSDPA User’s Manual • Dual Flash Memory – for enhanced reliability, the embedded system uses a dual Flash memory – one flash circuit is write-protected, being dedicated for the operating system (kernel) – the other flash circuit is for the applications, which can be easily updated, upgraded or enhanced •...
  • Page 5 The acquired product shall not be treated like household waste at the end of its life and will be returned to TOPEX Company at the address: ROMANIA, Bucharest, Feleacu Street no 10, code 014186 or given to a specialized firm.

  • Page 6: Table Of Contents

    5.7.1. SIM Status........................62 5.7.2. SIM Settings..........................63 5.8. VOICE ............................. 65 5.8.1. Phone Connections for BYTTON HSDPA ................65 5.8.2. VOICE Status..........................67 5.8.3. VOICE Settings ..........................68 5.9 Optimizing WiFi Performances......................70 5.9.1. Network physical configuration ....................70 5.10 Status Page............................

  • Page 7: Introduction

    Ethernet cables or other LAN wires. This is accomplished through the use of Access Point functionality of BYTTON HSDPA. The TOPEX equipment with built-in Internet gateway capability allows your house or company to share an UMTS account or other broadband connection, working simultaneously from different rooms, without need for cables or wires.

  • Page 8: Package Content

    User’s Manual 2. PACKAGE CONTENT The component elements that you may identify upon opening the BYTTON HSDPA package are shown below. When you open the equipment package, please ensure, using this list of items, that you have the full content.

  • Page 9: What Is Bytton Hsdpa

    Thus you will pay only the mobile-to-mobile cost. Since BYTTON HSDPA features both FXO and FXS interfaces, it is highly versatile: you may connect it either to a trunk of the phone exchange or to a local extension of the same phone exchange.
  • Page 10 This firewall is fully configurable, but it is also easy to use for beginning users. Because our product is Linux based, applications to enhance BYTTON HSDPA or to customize it can be quickly designed by our software developers, according to the special needs of various clients.

  • Page 11: Installation

    • While the device is in operation, the antennas of the BYTTON HSDPA unit should be at least 30 centimeters away from any human being.

  • Page 12: Identification Of Connectors

    Figure 1. Mounting BYTTON HSDPA on a wall No matter if it is installed horizontally or vertically, the best location for BYTTON HSDPA is in the middle of the place where you want to have wireless coverage. Installing BYTTON on a shelf higher up, with no obstructions around, ensures the best performance, both for WiFi and for the HSDPA modem.

  • Page 13: Connecting The Data Cables

    100Base-T connection, and both types of Ethernet connections maybe used on the same time. The network cables are to be inserted with one end into the RJ-45 sockets of the BYTTON HSDPA equipment labeled LAN1 to LAN4. The opposite end of the UTP cable can be inserted directly into PCs or in switches or hubs.
  • Page 14 For settings, refer to the User manual of your wireless adapter for associating with the BYTTON HSDPA router. The default SSID of the TOPEX router is “ByttonHSDPA”, encryption is disabled and open system authentication is used. You can modify these default settings as you wish.

  • Page 15: Connecting The Phone Cables

    User’s Manual 4.5. Connecting the phone cables: You may use one of the phone interfaces, either FXS or FXO. For connection, BYTTON HSDPA is shipped with a flat telephone cable, wired on both side with male RJ11 connectors. Connecting the telephone cable for FxS interface...
  • Page 16 Connecting the telephone cable for FXO interface If you use the FXO interface of BYTTON HSDPA, connect the phone cable with one of the end to the FxO connector of the equipment, and the other end to a line interface (local extension) of your PBX.
  • Page 17 4.6. Configuring and installing the SIM card In order for the BYTTON HSDPA router to work, it must have a valid SIM card with subscription to the GSM/GPRS/EDGE/UMTS/HSDPA operator where you want to connect to. Configuring the SIM card The SIM card that is used must be active.
  • Page 18 TOPEX BYTTON HSDPA User’s Manual For inserting the SIM card follow the next steps: 1. Push the little yellow button to eject the SIM carrier. 2. Pull out the holder (tray) for the SIM card. 3. Insert the SIM card into...

  • Page 19: Connecting The External Antennas

    The cable for HSDPA antenna must be threaded into the circular connector of BYTTON HSDPA labeled “GSM/3G”, while the stick antenna for WiFi into the other RF connector (to the right) as shown in the following drawing.

  • Page 20: Status Indicators

    User’s Manual Notice: The BYTTON HSDPA unit and its antennas should be placed such as to be as far as possible from appliances or office equipment that is sensitive to radio interference (microwave ovens, copiers, TV sets, PC displays, and multimedia systems). For best results, try to find for the HSDPA antenna a place of maximum signal reception.

  • Page 21: Configuration

    BYTTON HSDPA without the need of additional software on the computer used for programming. You just need a web browser as configuration terminal. This means that BYTTON HSDPA may be used on any computer platform and is not restricted to a certain operating system!
  • Page 22 Automatic IP The simplest way is to set your network adapter to get its IP address automatically from BYTTON. The Topex HDSPA router features a DHCP server, so it can provide your PC with the correct IP address, DNS and Gateway.
  • Page 23 Topex wireless router, because otherwise you won’t be able to access the BYTTON equipment! You should enter the IP address of the Bytton HSDPA device (by default 192.168.1.1) in the list of exceptions for the Proxy server: “Do not use proxy server for addresses beginning with …”...
  • Page 24 TOPEX BYTTON HSDPA User’s Manual Note that BYTTON uses a secure web connection (https) so you may get several warning messages like this one: or similar warnings mentioning “Website Certified by an Unknown Authority”: You should click „Yes”, „OK” or „Accept” to go on.
  • Page 25 Topex webpage Click the link of interest to you! Now you will be asked to enter a user name and a password to access the configuration page of Topex BYTTON. Multiple log-in options: Starting with version 0.6.9, a new user has been added: “user”, with the default password “bytton”...
  • Page 26 “401 Unauthorized” ! Connect again and be careful to enter the correct name and password. Following successful log-in, the main administration page for the Topex BYTTON router should be shown on screen. pag. 26...
  • Page 27 TOPEX BYTTON HSDPA User’s Manual Remember that the BYTTON home pages for User and respectively Admin will be slightly different, as shown next: User: Administrator: You notice that the admin has an additional configuration section, titled “MISC” More, his homepage page is now structured with direct links to all the sub-pages of the web interface.
  • Page 28 TOPEX BYTTON HSDPA User’s Manual User Admin Comments The additional menu item accessible when you log-in as Administrator is “MISC”. The “Miscellaneous” section was created to include different advanced settings that are not required by a normal user, but may be need for a system administrator.
  • Page 29 TOPEX BYTTON HSDPA User’s Manual There are several sections (Menu items) on the configuration page of BYTTON HSDPA, allowing you to modify the settings for: HOME: this home page for configuration of the equipment. LAN: settings for the wireless LAN (WiFi - embedded Access Point) and for the local wired...

  • Page 30: Lan

    WiFi access point and respectively for the DHCP server): 5.2.1. IP Settings Settings for the LAN IP of the BYTTON HSDPA router are the standard ones: IP Address and Netmask. These settings control how the Topex equipment connects into your local wired (Ethernet) computer network.

  • Page 31: Wifi Settings

    User’s Manual 5.2.2. WiFi Settings The settings for the wireless access point These control the 802.11b/g embedded Access Point (base station) of BYTTON HSDPA. There are several zones (groups of WiFi related settings), which are described next. Wireless access: you may enable or disable the wireless access to the BYTTON HSDPA device.
  • Page 32 User’s Manual Connection Mode: It has two options, Infrastructure and Ad-Hoc. Infrastructure: default operation mode. Several WiFi clients can connect to the BYTTON HSDPA, acting as server. The “Infrastructure” mode takes full advantage of the AP's ability to cover wide areas.
  • Page 33 TOPEX BYTTON HSDPA User’s Manual The pre-shared key version is called WPA-Personal or WPA2-Personal, while the more secure version using 802.1X server authentication is WPA-Enterprise or WPA2-Enterprise. In this case you must enter the respective key in the “WPA Key” field, the select the type of cryptography to be used for WPA: You can select for cryptography TKIP, AES or both.

  • Page 34: Commit

    TOPEX BYTTON HSDPA User’s Manual 5.2.3. Commit The “Commit” option described here is not specific to LAN, but rather it is a general option for the BYTTON equipment. If you performed configuration changes, using the “Save” button is not enough since it saves the modifications only into the temporary memory.
  • Page 35 5.2.4. DHCP DHCP Server: Enabled or Disabled. By default the Bytton HSDPA router acts as a DHCP server for the local network, thus dynamically assigning IP addresses to clients on the internal network. The Bytton HSDPA Wireless Router supports up to 254 IP addresses for your wireless network. When set to DISABLED IP addresses must be manually assigned by the network administrator.
  • Page 36 TOPEX BYTTON HSDPA User’s Manual The “Support” window tells you that the IP address has been “Assigned by DHCP” this example 192.168.1.12 (inside the range 10-20 that you have specified). You can also verify that the default gateway is 192.168.1.1 (the BYTTON device) and the Subnet Mask is 255.255.255.0.

  • Page 37: Settings

    PPP over Ethernet (PPPoE) Ethernet Port You have two options for interfaces, primary and secondary. If the “Fail over” feature is enabled, when the primary WAN interface is no longer available, the Bytton HSDPA equipment automatically switches to the secondary interface. pag. 37...

  • Page 38: Ethernet

    . By default it is disabled. Ping IP: an external address that will be periodically pinged. If it does not answer, Topex Bytton ISDN will decide whether the primary interface for the Internet is unavailable and it will switch to the secondary interface.
  • Page 39 TOPEX BYTTON HSDPA User’s Manual Address Type: options are Static or DHCP Assigned. Default is “DHCP Assigned”, which means that the IP address of the WAN Ethernet Interface will be automatically assigned by a DHCP server. Note that in this case the fields below are inactive.

  • Page 40: Ppp

    TOPEX BYTTON HSDPA User’s Manual This feature is especially important for connections where you are charged for the total connection time, no matter the data traffic: to avoid unnecessary expenses, you should set BYTTON to disconnect when there is no data traffic.
  • Page 41 TOPEX BYTTON HSDPA User’s Manual Modem settings: This section controls the parameters of the Point-to-Point Protocol for the serial connection, in this case the embedded HSDPA modem. You need to change these settings when you go to a region with different settings, if you use a different network operator or when you replace the embedded HSDPA modem with another, external 3G modem that requires special parameters.

  • Page 42: Gre

    5.3.5. GRE Settings for the GRE IP Tunnel, which is used when you need to perform IP tunneling in order to achieve a Virtual Private Network using several BYTTON HSDPA devices interconnected over the 3G mobile communications network. GRE IP Tunnel0: select Enable or Disable.

  • Page 43: Routing

    Routes (display and configure the static routes) Dynamic (selects OSPF or RIP for dynamic routing). 5.4.1. Firewall BYTTON HSDPA comes with a default firewall configuration, which ensures the security of your local network. The “Firewall” section includes both NAT (redirecting addresses), port forwarding (PAT) and Firewall (accepts or rejects data packets).
  • Page 44 TOPEX BYTTON HSDPA User’s Manual Note that each of the two panes has its own “Save” button, allowing you to save independently the two groups of settings. Port forward This section allows the forwarding of firewall ports from the Bytton equipment to a local computer from the coverage area of the router.
  • Page 45 TOPEX BYTTON HSDPA User’s Manual Same P / New P – This section allows you to select two options: SP – when this option is selected the source port typed in the Port S field will be forwarded on the same port to the computer with the IP address from the IP D field. If you select the “SP”...
  • Page 46 TOPEX BYTTON HSDPA User’s Manual Active Rules: pag. 46...
  • Page 47 What you see are the additional rules, the ones that you are allowed to modify, to supplement or delete. The firmware of BYTTON HSDPA automatically installs the basic rules that are required. For instance, if you enable the Webcam feature, the firmware opens the port 2000 for TCP traffic, if you enable the NTP service it opens port 123 for UDP traffic, and so on.
  • Page 48 TOPEX BYTTON HSDPA User’s Manual Note that the Static Routes configuration screen has two distinct parts: the upper pane displays the current routing table, such as: Here you can only see the existing static routes for BYTTON (default routes, gateway, masquerading if used, interface used, and so on), you cannot perform changes;...
  • Page 49 TOPEX BYTTON HSDPA User’s Manual Static Route Definition Such a static route is a possible path from a device to its destination or to another host. This way the Bytton router will be able to know where it may deliver the data packets coming from the Internet with different destination IP addresses.

  • Page 50: Dynamic Routes

    Shows the current state of the equipment and the logs, also allowing you to perform several system- related operations. The system configuration pages include these settings: Status, displays the current status of the BYTTON HSDPA equipment Logs, shows the log file Update, you may perform firmware update...

  • Page 51: Status

    Shows the status of the BYTTON HSDPA system: This page displays information about the following items: Serial Number: each Bytton HSDPA from Topex has an unique identification number, such as 0707214, 0707215, etc; Firmware version: version of the firmware running on BYTTON: you may see “Firmware version is 0.6.3”...
  • Page 52 TOPEX BYTTON HSDPA User’s Manual System uptime: time since the last restart of the BYTTON equipment, both in full format (hours:minutes:seconds) and short format (up 1 minute) Load average: “0.06, 0.04, 0.01” - info about system loading (maximum value / average value /...
  • Page 53 An example of a free Syslog Daemon program for Windows is Kiwi , from Kiwi Enterprises: See below an extract form the screen of the Kiwi program, which runs on the destination PC and receives the Syslog sent out by Bytton HSDPA device: pag. 53...

  • Page 54: Update

    5.5.3. Update Allows you to perform an update or upgrade of the firmware running on BYTTON HSDPA. The update (firmware image) must be on your PC. The image files have the extension “trx” You may download the image files from the TOPEX website. The update files are called “topex-1.2.3- HSDPA-x.y.z-P.trx”, where 1.2.3.

  • Page 55: Password

    BYTTON HSDPA equipment could cause some or all of the configuration settings to be lost, depending on the degree of change in the firmware.

  • Page 56: Defaults

    For this, simply press the Reset button (located on the back panel, among the connectors) for at least three seconds. The BYTTON HSDPA equipment will reboot and revert to the factory default settings. This way of restoring the factory default settings is faster than using the web interface, but you should exercise the same care.

  • Page 57: Load

    Click “Save” or select “Save it to disk” to save the file with the current configuration of BYTTON HSDPA. You may select the folder where the configuration will be saved; also, you should change the default name “conf.tar”...

  • Page 58: Services

    TOPEX BYTTON HSDPA User’s Manual 5.6 SERVICES Here you may configure settings for the “services” provided by BYTTON, such as DDNS, NTP, webcam, and function of the RST button. 5.6.1 DDNS Settings for the Dynamic DNS Server. Dynamic DNS is a service that enables mapping of a dynamically assigned IP address to a static or permanent hostname.

  • Page 59: Ntp

    TOPEX BYTTON HSDPA User’s Manual DDNS Type: Allows you to select the type of DDNS service. The drop-down list includes the major Dynamic DNS service providers. The default is gnudip. Username & Password: User name and password for authenticating to the DDNS.

  • Page 60: Webcam

    TOPEX BYTTON HSDPA User’s Manual 5.6.3 Webcam Shows and modifies settings of the web camera connected to BYTTON HSDPA. WebCam Service: Enabled or Disabled. Image Size: you may select one of the three values: 160x120, 320x240 or 640x480 (VGA). Default value is 320x240.

  • Page 61: Reset

    Do nothing – yes, this “do nothing” action may quite be useful. It may happen that the Reset button is touched by accident when you plug a cable into Bytton HSDPA, so BYTTON reboots and reverts to the factory default values, loosing your particular settings. If you want to avoid this, select “Do nothing”. Now, even if you accidentally press Reset, nothing happens.

  • Page 62: Sim

    TOPEX BYTTON HSDPA User’s Manual 5.7 SIM Here are the configuration pages related not only to the SIM card but also to the mobile module of the equipment. Also, from here you may send or receive SMS messages. 5.7.1. SIM Status This page shows you the current state of the SIM card and of the GSM/GPRS/EDGE/UMTS/ HSDPA module.

  • Page 63: Sim Settings

    TOPEX BYTTON HSDPA User’s Manual - Signal Level, displayed as two groups of two figures such as “15/30”. The two digits indicate the level of the RF signal for the GSM/GPRS/EDGE/UMTS/HSDPA network on a scale from zero to 30. If the SIM card is missing or isn't registered,its status will be: “no signal”.
  • Page 64 TOPEX BYTTON HSDPA User’s Manual 5.7.3. SMS Read Displays a list of received text messages. This list for displaying received SMS messages has the following columns: ID : reference number: 1, 2, and so on up to 14; STATUS: REC(Received), READ or UNREAD;...

  • Page 65: Voice

    - directly to an analogue phone - to a local interface (office subscriber) of PBX exchange For this purpose BYTTON HSDPA has two interfaces with RJ11 connectors, one is for FxO connection and the other for FxS connection. Only one of them may be connected at any moment of time! The selection is done through the Web interface, in the “PHONE”...
  • Page 66 A call is received from the mobile network. BYTTON HSDPA answers and opens a local line. The PBX exchange generates a dial tone. On this tone, the caller dials the number: a local extension or an external number. The PBX exchange routes this call in the same way as it treats any call came from a local subscriber.

  • Page 67: Voice Status

    Otherwise you will have no voice connection and hence no dial tone when you pick up the phone connected to BYTTON HSDPA. It is possible that you have a good data connection, and can you surf the Net or download files over the HSDPA broadband network, but the voice service is not available for the...

  • Page 68: Voice Settings

    Port type: first of all, you must choose the type of the phone port to use. You can select either FXS (for connection to a trunk of the PBX or directly to an analog phone) or FXO (when BYTTON HSDPA may be connected to a local extension of the PBX, as you would connect a standard office phone).
  • Page 69 BYTTON HSDPA interface is connected. 2. Or, if the exchange cannot be configured in that way, then you must set the BYTTON HSDPA equipment not to offer a DISA tone when a mobile phone call coming in. Instead, specify a “Target Number”...

  • Page 70: Optimizing Wifi Performances

    TV equipment, etc. To improve coverage, install the BYTTON HSDPA Routers in open areas. If this can’t be done or the distance between the wireless base station and its clients is too large, you should use additional WiFi Access Points as needed, to obtain adequate signal strength through your building.

  • Page 71: Status Page

    (you have access if you enter the correct user name and password), the Status Page can be accesses by any user. It shows you the essential parameters of the Topex wireless router, that are available in the web pager “SIM Status” and “System Status” described previously.
  • Page 72 (you cannot make voice or data calls). 5.12 KERNEL MODE The Topex Bytton HSDPA uses an advanced architecture, using two distinct Flash memory chips . While the usual architecture, with a single flash storage chip for the equipment, when an error occurs during the update process, the operation of the device can be compromised.

  • Page 73: Lan

    DHCP The settings are Identical with the DHCP settings in the normal configuration of Bytton HSDPA. If you enable the Dynamic Host Configuration Protocol feature, our Bytton equipment may can be used as a DHCP server for your local network.

  • Page 74: System

    Logs The “Status>System Logs” page is available also in kernel mode: While Bytton HSDPA works in Kernel mode, only kernel-related messages (user info, notices and warnings) will be displayed, since the application software is not present. Also, since no Internet connection is available for updating the time, the date/time of the logs will always be Jan 1: pag.
  • Page 75 TOPEX BYTTON HSDPA User’s Manual As mentioned previously, the log is very useful for debugging. Update The most important function of the Kernel mode is firmware update: you can load a new version of the application program, to get the equipment fully operational.
  • Page 76 Now you should see: - under the TOPEX logo, the name “byttonHSDPA”; - in the column to the left, all the items of the Menu are present (Besides LAN and System available in kernel mode, now there are also WAN, ROUTING, SERVICES, SIM, VOICE, MISC and so on);...

  • Page 77: Technical Specifications

    TOPEX BYTTON HSDPA User’s Manual 6. TECHNICAL SPECIFICATIONS Title Description Mobile networks GSM/GPRS/EDGE and respectively HSDPA/UMTS supported Frequency bands GSM/GPRS/EDGE: 850/900/1800/1900 MHz HSDPA/UMTS 2100MHz: 2100 MHz (Band Class 1) Supported TCP/IP, PPP, CHAP, PAP, ARP, UDP, RIP v.2, NTP and others...
  • Page 78 TOPEX BYTTON HSDPA User’s Manual Detailed data GSM CS: UL 9.6kbps/DL 9.6kbps services GPRS: UL 42.8kbps/DL 85.6kbps UMTS CS: UL 64kbps/DL 64kbps UMTS PS: UL 384kbps/DL 384kbps UL UMTS/DL HSDPA: UL 384kbps/DL 1.8Mbps Note: these are the uppermost limits of the 3G+ technology under laboratory conditions, you may not reach these speeds on your premises.

  • Page 79: Operating Environment

    TOPEX BYTTON HSDPA User’s Manual 7. OPERATING ENVIRONMENT BYTTON HSDPA was designed for indoor use only, so you should NOT operate it outdoors. You must install the BYTTON HSDPA equipment in closed rooms or enclosures, where the environment conditions should be:...

  • Page 80: Applications

    The access to data traffic does no longer require additional investments on equipment or software (router, switch , software, wiring operations). BYTTON HSDPA allows connection to the local network (LAN) via four Fast Ethernet (10/100 Mbps) ports or via its AP.
  • Page 81 Still, the four LAN ports are available, and you may combine in different configurations the wired and wireless local connections. In both home or small business environments BYTTON HSDPA allows flexible, mobile interconnection of desktop and notebook computers, printers and other peripherals such as scanners, playstations for on-...
  • Page 82 User’s Manual c. Remote video surveillance with camera With its built-in firmware, BYTTON HSDPA allows easy connection of one or several video surveillance cameras to a remote center, transmitting the still pictures or video stream via its embedded HSDPA modem.

  • Page 83: Glossary

    3G mobile broadband network or wired Ethernet. BYTTON HSDPA acts as an AP and can be server to as many as 32 WiFi clients (notebooks, desktop PCs with wireless cards or USB adapters, PDAs, wireless peripherals and so on) Broadband - A type of data transmission in which a single medium (radio, cable or fiber optics) carries several channels of data at once.
  • Page 84 “Station”, that may be an analog phone, a modem, a fax machine, or any analog device of the final user. The FxS interface of the BYTTON HSDPA equipment may be used for connection either to an analog trunk of the PBX or directly to a standard fixed phone.
  • Page 85 Proxy and dynamic and static IP address assignments. The Topex device automatically identifies users' network settings: static or dynamic IP, gateway, proxy, etc. so the users no longer need to re-configure their PCs’, notebooks or PDAs’ when they connect to the Topex equipment. With its IP Plug and Play technology, BYTTON ISDN accepts any client configuration for log-on, the end-users can leave unmodified their default network, e-mail, or browser settings.
  • Page 86 (subscribers, local extensions) served by the PBX. Current exchanges are in fact PABX, automated PBX, which don’t require a human operator to route the calls. The BYTTON HSDPA equipment was designed to work together with a PABX with analog trunks to route the calls. Bytton may be connected to the PBX either on a trunk line or on a subscriber line (local extension).
  • Page 87 TOPEX BYTTON HSDPA User’s Manual transaction security is more secure than a user ID and password, thus it is mostly used by financial institutions (for example for credit-card purchases over the Web). Since BYTTON provides ensures S- HTTP, this means a higher degree of security for you.
  • Page 88 TOPEX BYTTON HSDPA User’s Manual (level 4) of the ISO/OSI model. See also ISO/OSI model, packet, TCP/IP. UDP – Acronym for User Datagram Protocol. It is a simpler protocol than TCP/IP that corresponds to the transport layer of the ISO/OSI model. UDP converts the messages generated by the application into data packets to be sent through IP, but does not check if the messages have been transmitted correctly or not.
  • Page 89 TOPEX S.A. It is certified hereby that the Topex BYTTON HSDPA unit is manufactured in concordance with the legal provisions concerning responsibility towards the quality of delivered products, fulfills the quality parameters specified in its “User’s manual”...

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