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Www.birtel.com.tr GSM SIM BOX – SERVER GSM GATEWAY Case Study For Police.

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Presentation on theme: "Www.birtel.com.tr GSM SIM BOX – SERVER GSM GATEWAY Case Study For Police."— Presentation transcript:

1 GSM SIM BOX – SERVER GSM GATEWAY Case Study For Police

2 Overview TOPEX SIM Server Architecture Architecture components TOPEX SIM Server features Alarms and statistics Advantages Redundancy mechanism Power supply autonomy Content

3 Overview Manages the SIM allocation without the need of human intervention by gathering the SIM cards in a central location Virtual allocation of SIM cards – any SIM card stored in the SIM Box may be dynamically assigned to any GSM channel of any TOPEX gateway SIM cards organized into logical groups named SIM Pools Mobile modules organized into logical groups named GSM Pools Remote recharging from the web based interface of the prepaid SIM cards The administration and maintenance is achieved from the password protected web based interface The information is exchanged via IP connection: –Necessary bandwidth 64kbps –Roundtrip delay between SIM Server/box and GSM GW should be bellow 800ms

4 TOPEX SIM Server architecture IP Network 2G/3G Networks Remote OAM TOPEX SIM Server TOPEX SIM Box 10 TOPEX SIM Box 1 Cellular Gateway 2G/3G Networks LAN 10 GSM ch 4 GSM ch 30 GSM ch

5 Architecture components TOPEX SIM Server – a central device manager which administrate several SIM Boxes and GSM Gateways –One SIM Server can manage 10 SIM boxes – more than 5000 SIMs! TOPEX SIM Box – storage device which contains up to 512 SIM cards on a single equipment TOPEX VoiBridge – Cellular Gateway – up to 4 GSM / UMTS channels – available with FXO, BRI, PRI and VoIP trunks TOPEX Qutex – Cellular Gateway – up to 20 GSM / UMTS channels – available with FXO, BRI, PRI and VoIP trunks TOPEX multiAccess – Cellular Gateway – up to 64 GSM/UMTS channels OAM PC – web based administration, operation and maintenance interface

6 TOPEX SIM Server features Each SIM can have: –Maximum talk-time per day and Maximum talk-time per month Why? –Avoid extra-usage of a SIM - improve network test reliability Algorithms for choosing a SIM: –Talk time - the SIM with minimum talk time will be offered –Nr of calls - the SIM with the minimum number of calls will be offered –Last usage - the SIM which has the longest idle state –Credit - the SIM which the maximum credit value will be offered Why? –To do load-balancing between the SIMs. One does not want to use some SIMs more and some less. They have to be used approximately equally – establish a constant use of SIM cards during tests Generate SIM travel in GSM Gateways located in different places –SIMS can be allocated to modules in one gateway and then programmed to move to modules in another gateway Why? Multiple gateways can use minutes from the same SIM – test the availability of network to handle the SIM cards movement

7 Alarms and statistics Real time alarming system Alarms sent through SMS or in case of: –malfunction SIM cards –failed connection between system components –low ASR and ACD –insufficient SIM cards in a SIM pool Advanced statistics – report system on SIM, SIM Pool, GSM Pool, gateway, operator CDR generation - text file with details such as: equipment name, card and port number, provider, IMSI code, number of calls or talk time

8 TOPEX VoiBridge VoIP to GSM / UMTS small capacity gateway SIM Server ready – work with TOPEX SIM Server Capacity –2 up to 4 channels VoIP to GSM gateway –2 up to 4 channels VoIP to UMTS gateway 1 SIM card per GSM channel SIP and H.323 supported – any to any conversion Mobile frequencies covered: –GSM: 850/900/1800/1900 MHz –UMTS: 850/1900/2100 MHz Configurable alarms by , SMS or phone call in case of low ASR or hardware failures

9 TOPEX Qutex VoIP PRI GSM / UMTS medium capacity probe Capacity: –Up to 10 or 20 GSM/UMTS channels –5 plug-in boards with 2 or 4 GSM/UMTS channels per each board Up to 4 SIM cards for each GSM / UMTS channel SIM Server ready – can be used with TOPEX SIM Server Frequencies covered: –GSM: 850/900/1800/1900 MHz –UMTS: 850/1900/2100 MHz Configurable alarms by , SMS or phone call in case of low ASR or hardware failures

10 VoIP PRI GSM / UMTS large capacity probe Capacity: –Up to 32 or 64 GSM/UMTS channels –16 plug-in boards with 2 or 4 GSM/UMTS channels per each board Up to 4 SIM cards for each GSM / UMTS channel SIM Server ready – can be used with TOPEX SIM Server Frequencies covered: –GSM: 850/900/1800/1900 MHz –UMTS: 850/1900/2100 MHz Configurable alarms by , SMS or phone call in case of low ASR or hardware failures TOPEX multiAccess

11 IP Solution without SIM Server TOPEX VoiBridge TOPEX VoiBridge GSM Network NOC Replace SIM Traffic generator through GSM Network GSM Network

12 GSM Network Mobile Users SIM allocation SIM cards storage box – 512 SIM cards/box TOPEX SIM Server TOPEX SIM Box IP Network Remote OAM SIM server aplication IP PBX H323 or SIP TOPEX VoiBridge Branch 1 IP PBX H323 or SIP Branch 2 IP PBX H323 or SIP Branch n Solution diagram Central Location

13 Solution description The solution includes several remote locations and a central location In each remote location will be installed a TOPEX GSM Gateway equipment – between 4 and 32 channels GSM Gateway The GSM Gateway will be connected to the company IP PBX through SIP or H.323 trunks The calls to the GSM network from the sites will be routed through the GSM Gateway equipment in order to cut the costs of the calls from fixed to mobile In the central location will be installed the SIM Server and the SIM Box equipments All the SIM cards will be stored in the central location The remote locations will not include SIM cards in the GSM Gateways The allocation of SIM cards will be made remotely from the central location to all remote sites

14 How it works TOPEX VoiBridge GSM Network Mobile User SIM request SIM allocation NOC TOPEX SIM Server TOPEX SIM Box SIM request SIM allocation IP GSM Network

15 TOPEX SIM Server advantages All SIM cards used are virtually stored and managed in a single central SIM SERVER All SIM cards are physically stored in SIM Boxes located at client premises The SIM server allocates the SIM cards remotely, via an IP connection - avoids expensive and time-consuming trips for on site SIM card replacement and recharging The GSM modem has access to the remote SIM via a GSM terminal adapter/SIM emulator Flexible SIM allocation, according to tariff plans of the mobile carriers (advanced LCR) No need for human intervention to change SIMs manually Different algorithms for SIM selection; flexible SIM timer settings (minute, hour, day)

16 Redundancy mechanism I The SIM Server solution includes a central storage system – SIM Box equipment with SIM cards The remote locations contains 4 channels GSM Gateways – TOPEX VoiBridge The allocation of the SIMs is made remotely from the SIM Server application The first redundancy mechanism consist in local SIM cards installed in the GSM Gateways – additional to the SIM cards located in the SIM Box The communication between the SIM Box and the remote gateways contains a Keep Alive Mechanism on the TCP/IP connection When the TCP/IP connection is broken the Keep Alive mechanism signals the malfunction between the gateways and the SIM Box The remote gateways will automatically use the local SIM cards instead of SIM Box cards

17 Central storage for SIM cards TOPEX SIM Server TOPEX SIM Box IP Network TOPEX VoiBridge Redundancy mechanism I diagram Central Location TOPEX VoiBridge Keep alive mechanism – no connection between the GW and the SIM Box X TCP/IP connection is down X X VoiBridge will use only the local SIM cards

18 Redundancy mechanism II The second redundancy mechanism implies the use of 2 or several SIM Box storage equipments which allows the distribution of SIM cards Instead of using a single SIM Box for storage, the SIM cards are distributed in 2 or several boxes with an additional redundancy purpose Each GSM module from the remote GSM Gateways will have assigned 2 SIM cards – one SIM card from SIM Box 1 and one SIM card from SIM Box 2 The SIM cards from the SIM Box 1 will have attached a higher priority than the SIM cards from SIM Box 2 When the SIM Box 1 is unavailable the GSM module can not use anymore the SIM card with higher priority. In this case the GSM module from the remote GSM Gateway will use the SIM card with a lower priority located in the second SIM Box

19 SIM Server IP Network TOPEX VoiBridge Redundancy mechanism II diagram Central Location TOPEX VoiBridge SIM Box 2 SIM Box 1 malfunction SIM Cards distribution in SIM Box 1 and SIM Box 2 High Priority Low Priority GSM module uses the SIM card with high priority GSM module will use the SIM card with a lower priority

20 SIM Server IP Network TOPEX VoiBridge Redundancy mechanism II diagram Central Location TOPEX VoiBridge SIM Box redundant SIM Box 2 malfunction SIM Cards distribution in SIM Box 1 and SIM Box 2 High Priority Low Priority GSM module uses the SIM card with high priority GSM module will use the SIM card with a lower priority SIM Box 1 SIM Box 3 TOPEX multiAccess

21 Redundancy mechanism III The third redundancy mechanism includes the possibility to use empty SIM Box equipments with the same IP address with the operational one When the operational SIM Box equipment fails or it is damaged, the client can use the other SIM Box equipments The client need to extract manually the boards with SIM cards from the damaged SIM Box and to insert them in the new SIM Box This mechanism will require some time for SIM cards movement but will resolve the problem which can appear in the case of a unusable central SIM storage box

22 SIM Server IP Network TOPEX VoiBridge Redundancy mechanism III diagram Central Location TOPEX VoiBridge SIM Box 2 SIM Box 1 malfunction SIM Cards movement from SIM Box 1 to SIM Box 2

23 Power consume For power supply back-up autonomy for TOPEX equipments we recommend UPS systems The consumed power for each equipment provided by TOPEX is detailed in the table below: According to equipments installed in each location the UPS can be dimensioned in order to achieve the required capacity by the Turkish Police TOPEX EquipmentConsumed power (Watts) SIM Server (HP Proliant PC Server)250 SIM Box – 512 SIM cards60 VoiBridge – 4 GSM channels40 Qutex – 10 GSM channels60 multiAccess – 30 GSM channels90

24 UPS autonomy For instance if the central location 1 SIM Server unit, 1 SIM Box unit and 1 multiAccess the consumed power is about 400 W ( ) which means around 560 VA By using an UPS system with 2200 VA (2,2 KVA) the autonomy for the equipments installed in the central location will be around 1.5 hours. In case of using a larger capacity UPS, for instance 5KVA the power supply autonomy will increase to 3 hours. The central location where the SIM Box and SIM Server will be installed has the highest power consume. For the other sites which includes 1 VoiBridge, Qutex or multiAccess the power supply autonomy is detailed below: Equipment nameVoiBridgeQutexmultiAccess Consumed power40 W60 W90 W Autonomy for 1 KVA UPS3h 1h 40m Autonomy for 3 KVA UPS8h 50m8h5h 30m

25 Contact Tel Fax Address Abidin Daver Sk. No:7/11 Çankaya - Ankara Türkiye Birtel Network Technologies


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