Tri band Phones

"Tri band Phones" is contained 3 working frequency, the three working frequency is GSM900Mhz, DCS1800Mhz and PCS1900Mhz, repeating the process, the so-called "Tri band Phones" means to receive GSM900M, DCS1800Mhz and PCS1900Mhz these three PinLvDuan signal, choose a band, the choice of signal intensity, the base of the signal, if one party can free disconnected, turn to another frequency signal. It is actually expanded phone connection. In some mobile phone users were concentrated regions, especially suitable for mobile phone use Tri band Phones, three frequency cell phones can flexibly in GSM900, DCS1800 and PCS1900 switching between to always keep call quality unceasingly and calls. PCS1900 trillion nets, is North America (the United States, Canada and European countries communication network field commonly used nets.Due to the mobile phone can also work in the frequency of three different frequencies segment, so the phone has Tri band Phones characteristics of three kinds of network. From technical Angle, GSM1800 because of high frequency signals penetrate, strong ability in high-rise, therefore the complex environment of good quality and communication covered call, And PCS1900 channel, in North America (the United States, Canada and Europe have good communication ability, this is for those who went from intercontinental between people they need, provides the service.For operator speaking, Tri band Phones of constructing Internet, thoroughly GSM900 alleviates the existing problem of the frequency and the capacity of the network, and further optimization of hotspots, effectively relieve, peak traffic volume, and thus more connection.

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