What is Quad Band GPRS?
Packet Radio Service (GPRS) devices allows data transfer at all four frequencies commonly used in the global mobile communication system (GSM). In many cases, Quad Band GPRS is mobile phones that have the ability to process voice calls and data transfer. Currently, four main frequencies of GSM are used worldwide: GSM-900, GSM-1800, GSM-850 and GSM-1900. The fifth GSM frequency, GSM-400, is no longer commonly used. The GSM-900 and GSM-1800 frequencies are mainly used in Europe, Asia and Australia and GSM-850 frequencies and the GSM-1900 are mostly used in the United States, Canada and Latin America.
GPRS is a means of transferring data such as messages, e -maly and SMS photos with short messages (SMS), as well as browsing the Internet using mobile devices that use GSM technology. GPRS mobile devices transmit data at about the same speed as a computer modem with dialing. GPRS data service allows individuals to useTheir mobile devices to send and receive data transmissions to and from international locations. This also means that users can transmit and receive data in "roaming" or travel outside the coverage of their mobile service providers.
GPRS QUPD Band is usually more expensive than mobile devices with a single belt, dual band or TRI Band. For users who travel primarily to one or two specific places, such as business, a dual belt device that covers two of the four GSM frequencies, or TRI Band, which usually covers three of the four GSM frequencies. For users who rarely travel outside the coverage of their mobile service providers, any mobile devices with multiple bands are unnecessary.
In addition to the GPRS QUAD BAND, the mobile service provider must make the service of GPRS of different countries in whichThe customer uses the device. If this is not the case, then the mobile service provider must have cooperation with mobile service providers in different countries. The user's account must also be allowed for international data transmission and roaming.
Some subvisual travelers buy an unlocked dual band, mobile devices for Tri Band or Quad Band GPRS. The unlocked mobile device is not programmed to operate with a specific mobile service provider. Instead, the user inserts a prepaid prepaid identity card (SIM) on your phone. The prepaid SIM is programmed to allow users to transmit voice and data transmissions when traveling in a particular country. Some SIMS pre -paid are programmed to work with mobile service providers in several countries. Prepaid voice and data roaming is usually much cheaper than using a mobile service provider.