The Voice anymore. As a result, in the view of the user, it is awkward to communicate.Over 2.5 G and 2.75 G network enables all interested to continue using the service without at the same time.It offers high speed communications over broadband lines such as DSL (Digital Subscriber Line) is.Options for the service and the attention to using the mobile phone network to transfer data exist. Only play games and send SMS, MMS, which is done easily and with much publicity appeal. 3G mobile phone standards. To increase flexibility in the open with a full Non-Voice.Continue to maintain the quality of Voice service with the quality that is equivalent or better in the 2G organization.The international 3GPP (Third Generation Partnership Program) and 3GPP2 standard call-.3G mobile terminology. There are 2 major categories by the standard is: 1. standard UMTS (Universal Mobile Telecommunications Services) as a standard-The base is designed for mobile network provider that has led to the development of the 2G/NN2D5G from the era./2.75G to the 3G era, the full standard. Responsible for the development of standards by 3GPP is organization.The main technologies that are used all over the world, tolerance is a Wideband Code Division standards. Multiple Access (W-CDMA), in the future, there will be continuous development to HSDPA standards. (High Speed Downlink Packet Access), which supports communications with speed up to 14 mega.Bit per second or faster, 2.75 G communication standard to 36 times this W-CDMA Affairs.Thailand-mobile joint trade is to continue to develop, to open inside the beginning of 2548 (2005) In addition to the path to development of 3G standard network telephone service provider.The standard GSM mobile and W-CDMA are also accepted by major provider sample.The company, NTT Do Como who opened a mobile phone standard, which uses the technology for PDC I-mode. 3G for use under the trademark "FOMA" opened in Japan in the country. Since November, and current W-CDMA. 2544 (2001) became 3G networks. Japan, the largest in the country. Standard cdma2000 CDMA networks, a development supportCommunication in the age of 3G is responsible for the development of standards by the Organization, there is a core technology for 3GPP2.
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