Xexun Gsm Gprs
Thursday, October 30th, 2008Xexun Gsm Gprs
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 XEXUN Realtime GPS GSM GPRS Car Tracker Device  US $127.70
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GPRS $99 This innovative new book explains how GPRS (general packet radio service) allows you to expand your GSM networks towards third generation mobile communications to meet the demands of the most-sophisticated mobile data applications. The book concentrates on the interfaces between the known GSM network elements and the new subsystems -- PCU, SGSN, and GGSN -- that come with GPRS. It offers you an in-depth explanation of the extensions and methods of the GSM air interface necessary for GPRS and shows how the channel-oriented GSM is linked to the packet switched GPRS. Moreover, it explains what extensions there are in channel coding, how resources are allocated on the air interface, and how the quick network access necessary for GPRS is made possible. |
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SIMCOM gsm/gprs module sim900b $17.89 )SIM900B, GSM GPRS GPS module,GSM GPRS module SIM900B SIM900 SIM900A SIM900D 2)SIMCOM gsm/gprs module SIM900B |
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LT760-56 MC56 GSM GPRS MODEM $32.26 MC56 GSM GPRS MODEM 1.Based on MC56 Module 2.900/1800/1900mhz |
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Linkto-S200W Q2403A GSM GPRS MODEM $30.41 Q2403A GSM GPRS MODEM 1.Based on Q2403A Module 2.900/1800mhz |
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GSM, GPRS and EDGE Performance $140 GSM, GPRS and EDGE Performance - Second Edition provides a complete overview of the entire GSM system. GSM (Global System for Mobile Communications) is the digital transmission technique widely adopted in Europe and supported in North America.  It features comprehensive descriptions of GSM’s main evolutionary milestones - GPRS, (General Packet Radio Services) is a packet-based wireless communication service that promises data rates from 56 up to 114 Kbps and continuous connection to the Internet for mobile phone and computer users. AMR and EDGE (Enhanced Data GSM Environment), and such developments have now positioned GERAN (GSM/EDGE Radio Access Network) as a full 3G radio standard.  The radio network performance and capabilities of GSM, GPRS, AMR and EDGE solutions are studied in-depth by using revealing simulations and field trials. Cellular operators must now roll out new 3G technologies capable of delivering wireless Internet based multimedia services in a competitive and cost-effective way and this volume, divided into three parts, helps to explain how: 1. Provides an introduction to the complete evolution of GSM towards a radio access network that efficiently supports UMTS services (GERAN). 2. Features a comprehensive study of system performance with simulations and field trials. Covers all the major features such as basic GSM, GPRS, EDGE and AMR and the full capability of the GERAN radio interface for 3G service support is envisaged. 3. Discusses different 3G radio technologies and the position of GERAN within such technologies.  Featuring fully revised and updated chapters throughout, the second edition contains  90 pages of new material and features the following new sections, enabling this reference to remain as a leading text in the area: Expanded material on GPRS Includes IMS architecture (Rel’5) and GERAN (Rel’6) features Presents field trial results for AMR and narrowband  Provides EGPRS deployment guidelines Features a new chapter on Service Performance An invaluable reference for Engineering Professionals, Research and Development Engineers, Business Development Managers, Technical Managers and Technical Specialists working for cellular operators |
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LT560-S GSM GPRS MODEM $25.62 GSM MODEM 1.Based on TC35 Module 2.900/1800mhz |
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Rs232 GSM/GPRS MODEM MC35I $70.53 Rs232 GSM/GPRS MODEM MC35I Siemens module MC35I Dual band 900/1800 Mhz AT Command RJ11 connector for voice(handset) |
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1pcs/lot free shipping the smallest mini GSM/GPRS GPS tracker tracking $29.99 1pcs/lot free shipping the smallest mini GSM/GPRS GPS tracker tracking |
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4port Intelligent Sms Server Guad Band Gsm/Gprs Cellular Us $923.99 4PORT INTELLIGENT SMS SERVER QUAD BAND GSM/GPRS CELLULAR US |
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8port Intelligent Sms Server Guad Band Gsm/Gprs Cellular Us $1444.99 8PORT INTELLIGENT SMS SERVER QUAD BAND GSM/GPRS CELLULAR US |
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SIM900 TTL/RS232 GPRS MODEM $35.48 TTL / RS232 SIM900 GSM GPRS modem 1.GSM/GPRS module SIM900 2.Quad band 850/900/1800/1900MHz 3.Replace SIM300D/340D |
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Microcontroller Based GSM/Gprs Projects $151.35 A microcontroller is a singlechip computer. Before the invention of the microcontrollers most intelligent systems were designed using microprocessors. A microprocessor is the processing element of a computer, consisting of an Arithmetic and Logic Unit (ALU) and the Control Unit (CU). A microprocessor on its own is useless and it has to be supported by a large number of peripheral chips, such as memory, inputoutput, timer, interrupt logic and so on. Currently there are many microcontroller chips manufactured by various companies. This book is based on using the highly popular PIn6F887 type microcontroller. GSM/GPRS modems are used in all mobile phones. This book teaches the basic principles of microcontrollers and shows how they can be used in GSM/GPRS based communications projects. All of the examples and the projects in the book are based on the highly popular mikroC language, developed by mikroElektronika. Author: Ibrahim, Dogan/ Ibrahim, Ahmet Binding Type: Paperback Number of Pages: 204 Publication Date: 2010/06/07 Language: English Dimensions: 5.98 x 9.01 x 0.46 inches |
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GPRS Networks $140 GPRS is a packet based wireless communication service that offers data rates from 9.05 up to 171.2 Kbps and continuous connection to the Internet for mobile phone and computer users. GPRS is based on GSM communications and complements existing services such as circuit switched cellular phone connections and the Short Message Service (SMS). GPRS represents the bridge between 2G and 3G mobile telecommunications and is commonly referred to as 2.5G. Implementation of GPRS requires modification of the existing GSM networks in that GSM is a circuit switched technology while GPRS is packet oriented. GPRS enables packet data (the same as is used by an Ethernet LAN, WAN or the Internet) to be sent to and from a mobile station - e.g. mobile phone, PDA or Laptop. WAP and SMS can also be sent using GPRS and individuals working with GPRS need to learn and understand how the mobile stations, the air interface, network architecture, protocol structures and signalling procedures must be modified. GPRS offers much higher data rates than GSM and can be combined with 3G technologies such as EDGE to give even higher bit-rates. It offers many benefits for customers and network operators: such as volume (rather then time) dependent billing and more efficient use of network resources. Due to the worldwide delay in implementing 3G solutions such as CDMA and UMTS the demand for GPRS is still growing. GPRS Networks : Offers detailed information ranging from standards to practical implementation Answers 'how' and 'why' rather than just simply re-stating GPRS specifications Provides comprehensive coverage in a single volume Essential reading for all telecommunications project managers, field engineers, technical staff in network operator and manufacturing organisations, GPRS application and service developers, Datacoms/IT engineers. The comprehensive coverage also makes this a superb reference for students of computer science, telecommunications and electrical engineering. |
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GPRS in Practice $130 Professionals quickly discover that, although the technical specifications for GPRS cover all parts of the engineering functions in detail and depth, they are lacking in one important feature; the conceptual framework within which the specifications sit - GPRS in Practice fills this gap. By beginning with an explanation of why GPRS is necessary and describing the core concept of GPRS operations, the TBF (Temporary Block Flow), a revision section then covers the GSM Air Interface with its Radio, Physical and Logical channels and this progressively leads to the GPRS logical channels - what they do and how they do it. The book then moves on to a brief introduction of the GPRS protocol stack which provides a launch pad for a detailed trip into all the layers of this stack, with detailed diagrams and explanations of each layer integrated into an overall understanding of how the GPRS service operates in practice. Provides descriptions of why procedures are specified and then clearly explains how the specifications work in practice  Provides a layered view of the GPRS protocol and deals in detail with each layer separately  Includes numerous acronyms and abbreviations accompanied by their full meaning An invaluable resource for Mobile network operators, Development and deployment engineers and Handset designers. |
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ZC110S GPS/GSM/GPRS Realtime Location Anti-Theft Tracker(Silver) $107.93 - Build-in GPS and GSM/GPRS modules - Excellent for fixing the position even at a weak signal status, work well even in areas with limited sky view like urban canyons - High sensitivity, new technology - Location,monitor and tracking - Cut engine - SOS - Speeding/moving sense - anti-take down sense - Power lower sense - Based on GPS/GSM/GPRS doubled location - Support GPRS/TCP/IP to internet - Support auto connect to GPRS server - All parameters can setup by SMS/GPRS - NMEA 0183 - GPS MODEL: SIRF III-NMEA0183 - GSM MODEL: SIM300DZ/SIM340DZ - Band: 850/900/1800/1900MHz optional - Work mode: SMS/GPRS - Input: 9-30V DC - Work current:35mAh - Package included 1 x tracker 1 x relay 1 x GPS antenna 1 x GSM antenna 1 x wiring 1 x microphone SOS cable ? |
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Radio Interface System Planning for GSM/Gprs/Umts $253.31 This broadly applicable book introduces radio system planning, emphasizing theoretical and practical details for the planning of GSM, GPRS and UMTS mobile networks. It explains the key planning parameters for these systems and describes the common tasks in radio system planning. Author: Lempiainen, Jukka/ Manninen, Matti/ Lempidinen, Jukka Binding Type: Hardcover Number of Pages: 292 Publication Date: 2001/10/01 Language: English Dimensions: 9.64 x 6.22 x 0.69 inches |
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GSM $130 With around 3 billion subscribers, GSM is the world's most commonly used technology for wireless communication. Providing an overview of the innovations that have fuelled this phenomena, GSM: Architecture, Protocols and Services, Third Edition offers a clear introduction to the field of cellular systems. Special emphasis is placed on system architecture and protocol aspects, and topics range from addressing concepts through mobility management to network management. This third edition contains around 25% new and reworked material and has been thoroughly updated to encompass recent advances and future trends. It serves as both an introductory textbook for graduate students as well as a reference resource for telecommunications engineers and researchers. This edition: Presents capacity enhancement methods like sectorization, the application of adaptive antennas for Spatial Filtering for Interference Reduction (SFIR) and Space Division Multiple Access (SDMA) Provides a detailed introduction to GPRS, HSCSD, and EDGE for packet-switched services and higher data rates Features updated coverage on the vastly expanded range of GSM services, including an examination of Multimedia Messaging Service (MMS) Adopts a highly graphical approach with numerous illustrations |
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Multi-Tech MultiModem GPRS MTCBA-G-F4 - Wireless Cellular Modem - External - RS-232 - GSM, GPRS - 85.6 Kbps. Each $225.34 Manufacturer: Multi-Tech Systems Inc. Each. The MultiModem GPRS wireless modem offers standards-based GSM/GPRS Class 10 performance. This ready-to-deploy, standalone modem provides wireless data communication and integrates seamlessly with virtually any a |
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Portable Triband GSM/GPRS/GPS Tracker for Personal Remote Positioning $122.89 - Built-in SIRF Chipset, excellent for fixing the position even at a weak signal status.- Built-in GSM/GPRS module, supports 3-frequency GSM 900/1800/1900 MHz- Get the traget's latitude and longitude by SMS or GPRS, and check position on google earth/maps- Remote sending commands by GPRS server and SMS- Auto location report- Support GSM slim card- Geofence alert when it breaches the restricted area- Movement alert when it begins to move- Overspeed alert when the target moves exceed of the restricted speed- Low battery alert if the battery is low- Wirebox, microphone and antenna included |
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USB GSM/GPRS/EDGE Wireless Modem Adapter with Antenna $34.9 - This is a quad-band wide area wireless modem supporting all the different frequencies used by EDGE and GSM, GPRS networks worldwide. Users around the globe can enjoy the freedom to have access to critical information wherever they are located on both EDGE and GSM, GPRS networks.- Supports GSM, GPRS, EDGE 850, 900, 1800, 1900MHz- Speed rates: EDGE: 460.8Kbps, 123.7Kbps(DL, UL); GPRS:(CS4)85.6Kbps, 42.8Kbps(DL, UL); GPRS:(CS2)53.6Kbps, 26.8Kbps(DL, UL); GSM:9.6Kbps, 14.4Kbps(DL, UL)- EDGE multi-slot class 12 (up to 4TX, 4RX, 5 totals)- Browses Internet with high speed- File transmission- Receives and sends E-mail- Receives and sends short message (SMS)- Express Card interface, hot plugging and hot pull out- Support windows 2000, 2003, XP, Vista, Server 2008 operation system- External removable antenna- Package includes: 1*GSM, GPRS, EDGE USB Wireless Modem, 1*2.5mm earphone, 1*Installation CDSpecificationsDimensions: 4.02 in x 1.54 in x 0.51 inWeight: 5.68 oz |
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SIM300 SIM300D SIM300DZ GSM GPRS Module Replacer & Free Shipping $26.8 SIM300DZ 1.New and good original packing with ROHS 2.GSM GPRS Module |
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GPRS for Mobile Internet $99 A comprehensive presentation of GPRS (general packet radio service). After a general overview of the GSM (global system for mobile communication) and GPRS systems, the text provides detailed coverage of a wide range of critical topics, including the radio interface, user plane and RLC principles. |
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Mini GSM/GPRS/GPS Car Tracking System $99.99 FeaturesSupport non-server based locationLocation memorizationAuto location reportAuthorize/delete the tracking phone numberCovert alert amp; voice surveillanceGeo-Fence: alert in case of breaching the predefined districtMovement alert: alert in case of movementSpeed alert: alert in case of excess of the predefinded speedPower alert: alert when device is being switched offSimply insert a GSM sim card into the GPS unit. Whenever you call the unit it will respond with the coordinates of its location thru a SMS message. You can then use these coordinates on any mapping software (for example google earth) which will show where exactly the unit is locatedWith some little setup, you can also have the device to send the data directly to a computer thru GPRS and display its location on a map with our bundled software for real-time location trackingSpecificationDimensions: 65mm x 46mm x 18mmBand: 850/ 900/1800/1900Mhz or 900/1800/1900MhzNetwork: GSM/GPRSGPS Chip: SIRF3 ChipGPS Sensitivity: -159dBmGPS accuracy: 5mWeight: 50gTime to First Fix: Cold status 45s, Warm status 35s,Hot status 1sCar Charge: 12-24V input, 5V outputWall Charger: 110-220V input, 5V outputBattery: Chargeable Changeable 3.7V, 1000mAh Li-ion batteryStandby Time: 48 hours |
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mini gsm / gprs / gps car tracking system $80.49 Caratteristiche sostenere non-server basati sulla localizzazione posizione memorizzazione auto posizione relazione autorizzare / eliminare il numero telefonico di inseguimento allarme e di sorveglianza segreta voce geo-fence: allarme in caso di violazione del distretto predefinito Movimento alert: alert in caso di movimento accelerare alert: alert in caso di eccesso della velocità predefinded Potenza alert: alert quando il dispositivo viene spento Basta inserire una scheda sim gsm nell'unità gps. ogni volta che si chiama l'unità risponderà con le coordinate della sua posizione attraverso un messaggio sms. è quindi possibile utilizzare queste coordinate su qualsiasi software di mappatura (ad esempio Google Earth) che mostrerà esattamente dove l'unità si trova con qualche piccola messa a punto, è anche possibile avere il dispositivo per inviare i dati direttamente ad un calcolatore attraverso gprs e visualizzare la sua posizione su una mappa con il nostro software in bundle per il monitoraggio in tempo reale posizione specificazione Dimensioni: 65mm x 46mm x 18mm band: 850 / 900/1800/1900MHz o 900/1800/1900MHz rete: GSM / GPRS gps chip: chip di SIRF3 gps sensibilità:-159dBm Esattezza di GPS: 5m peso: 50g volta al primo fix: 45s 35s stato freddo, caldo, caldo 1s stato auto di carica: 12-24V input, output 5v caricabatterie da muro: 110-220V input, output 5v batteria: variabile addebitabile 3.7V, 1000mAh Li-ion standby time: 48 ore |
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Mini GSM / GPRS / GPS-Auto-Tracking-System $80.49 Features unterstützen Nicht-Server-basierten Standort Lage Auswendiglernen Auto-Standort Bericht autorisieren / Löschen des Tracking-Telefonnummer verdeckte Überwachung Alarm Stimme Geo-Zaun: Alarm im Falle eines Eingriffs in die vordefinierten Bezirk Bewegung Alarm: Alarm bei Bewegung Speed Alert: Warnung bei Überschreitung der Geschwindigkeit Vordefinierte Macht Alarm: alarmieren, wenn das Gerät wird abgeschaltet legen Sie einfach eine GSM-SIM-Karte in das GPS-Gerät. wann immer Sie das Gerät nennen es wird mit den Koordinaten seiner Position durch eine SMS-Nachricht zu reagieren. Sie können dann diese Koordinaten auf einer Mapping-Software (zB Google Earth), die zeigen, wo genau sich das Gerät befindet, wird mit einigen kleinen Setup können Sie auch über das Gerät, um die Daten direkt an einen Computer durch GPRS und zeigt ihre Position auf einer Karte mit unseren Software-Paket für Echtzeit-Standortbestimmung Spezifikation Abmessungen: 65mm x 46mm x 18mm Band: 850 / 900/1800/1900 MHz oder 900/1800/1900 MHz Netzwerk: GSM / GPRS GPS-Chip: Sirf3 Chip GPS-Empfindlichkeit: -159 dBm GPS-Genauigkeit: 5m Gewicht: 50g time to first fix: Kalter Status 45s, warmer Status 35s, heißer Status 1s Auto Gebühr: 12-24V Eingang, Ausgang 5V Ladegerät: 110-220V Eingang, Ausgang 5V Batterie: Anrechenbare veränderbare 3.7V, 1000mAh Li-Ion Akku Standby-Zeit: 48 Stunden |
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alarm/cctv camera/surveillance, GSM/GPRS, 900/1800/1900Mhz, remote control, night vision, home/office use $214.74 900/1800/1900Mhz, remote control, night vision, home/office use Alarm/cctv camera/surveillance/security system, GSM/GPRS, |
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Scan2email Auf Einem GSM/Gprs Faxgert $106.74 In der heutigen Zeit und seiner globalen Wirtschaftsumgebung spielt die Erreichbarkeit eine relevante Rolle. Drahtlosnetzwerke wie GSM und GPRS erweitern die Mglichkeiten hin zum Ziel der grenzenlosen Erreichbarkeit. Dieses Buch beschreibt Design und Implementierung eines neuen Dienstes, der einen weiteren Schritt in Richtung uneingeschrnkter Erreichbarkeit bedeutet. Der Dienst trgt den Namen Scan2Email und wird auf einem Faxgert der Firma Sagem Communications Austria implementiert. Scan2Email beschreibt die bertragung eines eingescannten Dokuments an einen EMail Empfnger. Im Rahmen dieses Buches werden dazu relevante Technologien, Ablufe und Hardwarekomponenten erklrt. Zustzlich erfolgt durch die Beschreibung von Arbeitsablufen und Codeausschnitten eine Dokumentation fr die Umsetzung der Funktion Scan2Email. Am Ende des Werkes zeigt ein funktioneller Test die erfolgreiche Integration des Dienstes in das bereits bestehende Framework von Sagem Communications Austria. Author: Hdlmoser, Michael Binding Type: Paperback Number of Pages: 104 Publication Date: 2010/02/24 Language: German Dimensions: 5.98 x 9.01 x 0.24 inches |
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Multi-Tech MultiModem GPRS MTCBA-G-F4 - wireless cellular modem $199.99 Multi-Tech MultiModem GPRS MTCBA-G-F4 - Wireless cellular modem - external - RS-232 - GSM GPRS - 85.6 Kbps |
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Multi-Tech MultiModem GPRS MTCBA-G2-EN2 - wireless cellular modem $349 Multi-Tech MultiModem GPRS MTCBA-G2-EN2 - Wireless cellular modem - external - Fast Ethernet - GSM GPRS - 85.6 Kbps |
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SIM900 SIM900A GSM GPRS Module Replace SIM300 SIM340 & Free Shipping $22.68 SIM900A 1.New and good original packing with ROHS. 2.GSM GPRS Module ,instead of SIM300/SIM340E |
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Portable Mini GSM/GPRS/GPS Tracker for Personal Remote Positioning $80 - Built-in SIRF3 Chipset, excellent for fixing the position even at a weak signalstatus- Built-in GSM/GPRS module supports 4-frequency GSM 850/900/1800/1900 MHz- Gets the position information via mobile phone SMS, or examine the path on theInternet- SOS button send out exact location for immediate rescue/action- Working Based on GSM/GPRS network and Internet, this product can locate and monitorand remote targets by SMS or internet- Monitor and protect child, elder, disabled and can be used for physicaldistribution and inspect official occasions, track criminals secretly- Package includes:- 1 * GPS Tracker- 2 * 3.7V 1200mAh Li-ion rechargeable batteries- 1 * USB data and charging cable- 1 * 110V~240V US type AC adapter- 1 * Software CD- 1 * English user manualSpecificationsDimensions: 2.72 in x 1.85 in x 0.71 inWeight: 13.23 oz |
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GPS + Dualband GSM/GPRS Realtime Anti-Theft Vehicle Tracker (900MHz/1800MHz) $89 - Build-in GPS and GSM/GPRS modules- Support GSM 900/1800 MHz. Excellent for fixing the position even at a weak signal status, work well even in areas with limited sky view like urban canyons- High sensitivity, JRC low power GPS chipset- SOS button send out exact location for immediate rescue/action- Support check location and real-time and historical trajectory by SMS or Internet- Support single location and continuous tracking- Support cut-off electricity and oil function and recovery command- GSM module: MTK program, GSM 900/1800 dual-band. Support the TCP protocol- GPS chipset: JRC chipset- Package included:- 1 * GPS tracker device- 1 * GPS and GSM antenna- 1 * SIM card socket- 1 * Power cable- 1 * 2.5mm to 3.5mm adapter cable- 1 * 3.5mm jack earphone- 1 * Software CD |
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free shipping! 900/1800Mhz for SMS EF1103 GSM/GPRS modem,Huawei Module (RS232) $97.77 1. GPRS modem with industrial wireless GPRS module 2. EGSM900/GSM1800 3. Support SMS and CSD function GPRS multi-slot class |
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GPS/GSM/GPRS Tracker for Personal Remote Positioning $116.8 - Support 4-frequency GSM 850/900/1800/1900 MHZ- High sensitivity, new technology- Excellent for fixing the position even at a weak signal status- Work well even in areas with limited sky view like urban canyons- Compact size, and smaller than one name card for easy to hide- Very Low power consumption- Fast Signal Acquisition- Support single location and continuous tracking; location triggered by tracker; location triggered by authorized cell phone- External GSM and GPS cable style antennas- Comes with 3.5mm cable style microphone set- JD1914 plug relay holder included- 1 * connection cable included- English use manual includedSpecificationsDimensions: 3.74 in x 2.13 in x 1.02 inWeight: 21.52 oz |
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Free shipping-New Fast Bulk SMS-GPRS Modem-GSM MODEM-USB Modem $15.68 Fast Bulk SMS-GPRS Modem-GSM Modem-USB Modem Frequency: 900/1800MHz High speed for 85.6Kbps supports sms,data,voice,dial-up |
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Handheld TriBand GSM/GPS/GPRS Remote Personal Position Tracker with SOS $100.97 - Built-in SIRF StarIII Chipset, excellent for fixing the position even at a weak signal status.- Built-in GSM/GPRS module, supports GSM 900/1800/1900 MHz- Sensitivity: -159dBm- Supports SMS communication or GPRS TCP connection.- Gets the position information via mobile phone SMS, or examine the path on the Internet- Voice surveillance- Add or change Username and Password and Authorized number- Monitoring and SOS feature.- Geofence alert when it breaches the restricted area.- Movement alert when it begins to move.- Overspeed alert when the target moves exceed of the restricted speed.- Low battery alert if the battery is low.- Package:- 1 x EU type power adapter- 1 x Strap- 1 x Battery- 1 x USB cable- 1 x Driver CD- 1 x English user manual? |
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V250 Ultra Mini Real-Time GSM/GPRS/GPS Tracker (900/1800MHz) $89.1 - Built-in SKYTRAQ high-performance single-chipset, support GPS rapid positioning capabilities- Excellent for fixing the position even at a weak signal status- Built-in GSM/GPRS module, support GSM 900/1800Mhz- Get the position information via mobile phone SMS or examine the path on the internet- Support SMS communication, GPRS TCP or UDP connection- Use SMS as the control command to change tracing function or switch GPS- Built-in quick dial and SOS buttons can instantly send current location (GPS coordinates) to designated receivers via SMS- Package included:- 1 * GPS tracker- 1 * 3.7V/450mAh Li-ion rechargeable batteries- 1 * USB cable- 1 * 110~250V AC charge adapter (EU plug)- 1 * Software CD- 1 * Neck loop strap |
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MMS GSM Wildlife camera 12MP / GPRS game camera infrared with CMOS sensor /Stand by time up 6months Ltl5210mm OEM $245 MMS trail camera_Operates globally via GSM/GPRS network, Support WCDMA,850 / 900 1800 /1900MHz. jagt kamera GSM Scouting Kamer |
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Virtual Roaming Systems for GSM, GPRS and UMTS $130 This book provides a detailed technical guide to the virtual and optimised roaming systems for mobile networks Written by a pioneer in the field, this book focuses on the implementation of virtual roaming systems. It generalizes the previous SS7 SMS interworking architectures to voice and data, GPRS, and 3G virtual roaming; extending the discussion of virtual roaming to include location based services, optimal routing and 4G perspectives. The author provides a thorough and detailed technical explanation of the topic covering subjects such as ‘Over the Air’ (OTA) provisioning and detailed geo-localisation systems in a virtual roaming environment. Finally, this book addresses the application of MAP, CAMEL, TCAP, SCCP, and GTP. Key Features: Provides a thorough and detailed technical coverage of virtual and optimised roaming systems for mobile networks Explores the application of MAP, CAMEL, TCAP, SCCP, and GTP Discusses previous SMS Hubs architecture used for SMS interworking and generalises to voice, data, and 3G virtual roaming Includes material on pre-paid case with CAMEL parameter transformations, SMS, Supplementary Services and USSD implementation Focuses on roaming hubs (including an, introduction to Sigtran configuration) and transparent networks of hubs This book will serve as an invaluable reference for network and networking engineers, handset developers, systems implementers, systems integrators, systems software engineers and programmers, wireless specialists and anybody else seeking a comprehensive and practical guide to the basics of virtual roaming systems. |
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TK102 Personal tracker Wholesale price Best quality FREE SHIPPING(hk air) Global Smallest GSM/GPRS/GPS Tracker Receiver $51.99 1.Global Smallest GSM/GPRS/GPS Tracker 2.Receiver for Fixing Position 3.Nice Price and High Quality 4.Newest GPS |