This kind of cell phone jammer is specific for the cellular communication

2.5G is based on the transition between 2G and 3G type. Than 2G in speed, bandwidth has increased. Can easily achieve the existing GSM network with easy access to high-speed data packet. Has commercial applications 2.5G (Generation) mobile communications technology is the convergence from 2G towards 3G technologies, breakthrough technology for 2G circuit-switched data transmission rate constraints, the introduction of packet switching technology, which allows data transfer rates have a qualitative breakthrough in a range between 2G and 3G over technology. The technology import of cell phone jammer is very indispensable for the cell phone jammer company in this period.
2.5G was mainly due to the emergence of 3G is a very huge project, the more involved and complex level, from the current 2G 3G is not immediately look into the implementation. Representatives: GPRS, HSCSD, WAP, EDGE, Bluetooth (Bluetooth), EPOC technology. 3rd Generation 3G is the English abbreviation of the third generation mobile communication technology. At present, China 3G standard has not yet promulgated. Relative to the first generation analogue phones (1G) and second-generation GSM, TDMA digital mobile phones, etc. (2G), third-generation mobile phones generally refers to wireless communications and Internet and other multimedia communications with a new generation of mobile communication systems. The technology absorption of cell phone jammer should be done on the basis of the existing technology of cell phone blocker.
It can be convenient, fast image processing, music, video streaming and other forms of media, including web browsing, conference calls, e-commerce and other information services. Integration of multimedia elements for mobile phones provide a powerful support. However, in order to provide this service, wireless networks must be able to support different data transfer speed, which means that in any environment can support at least 2Mbps (megabytes / second), 384kbps (kilobytes / second) and 144kbps transmission speed. 2G network bandwidth is 9.6Kpbs. 2.5G to 56Kpbs. 3G will have a wider bandwidth, the transmission speeds of up to 100-300Kbps, not only to transmit voice, but also transfer data to provide fast, convenient wireless applications. The technology innovation of cell phone jammer is the basis of enterprise development.
GSM digital mobile communication system is a major European telecom operators and manufacturers designed the composition of the Committee for Standardization, which is based on the cellular system evolved. Including GSM900MHz, GSM1800MHz and GSM1900MHz and several other bands. GSM system has several important features: ability to copy good security, network capacity, number of resource-rich, call clarity, stability, strength less susceptible to interference, the information is sensitive, less dead phone, mobile and low power consumption. Is the abbreviation of Code Division Multiple Access CDMA (Code Division Multiple Access), which is a branch of the digital technology - spread spectrum communication technology to develop a new and sophisticated wireless communications technology. This kind of cell phone jammer is specific for the cellular communication.