Searching for Quad Band Gsm And Tri Band 3g Support information? Find all needed info by using official links provided below.
https://www.phonescoop.com/glossary/term.php?gid=139
Compared to a tri-band phone supporting the 900 / 1800 / 1900 bands, a quad-band phone adds support for GSM 850 for full coverage in the Americas.
https://en.wikipedia.org/wiki/Multi-band_device
In telecommunications, a multi-band device (including dual-band, tri-band, quad-band and penta-band devices) is a communication device (especially a mobile phone) that supports multiple radio frequency bands. All devices which have more than one channel use multiple frequencies; a band however is a group of frequencies containing many channels.
https://www.myjapanphone.com/Japan_cell_phone/dual_band_tri_band_quad_band.html
Tri-band - also known as tri-band or triband. A tri-band phone operates on three frequency bands, 900 MHz, 1800 MHz and 1900 MHz, allowing you to use it in Europe, Africa, Asia, nearly all of North America, Australia and New Zealand 2G Triband phones are mobile phones that support the GSM 900/1800/1900 MHz bands commonly sold in Europe, Asia ...
https://en.wikipedia.org/wiki/GSM_frequency_bands
As a more recent example the Apple iPhone 5 and iPhone 4S support quad-band GSM at 850/900/1800/1900 MHz, quad-band UMTS/HSDPA/HSUPA at 850/900/1900/2100 MHz, and dual-band CDMA EV-DO Rev. An at 800/1900 MHz, for a total of 'six' different frequencies (though at most four in …
http://forums.redflagdeals.com/3g-quadband-gsm-802839/
Oct 19, 2009 · gsm and cdma are both standards of 2G technology used by carriers. 3G technology utilizes umts and wcdma standards. 3G is the evolution upgrade path step up from 2G. quad band means the phone utilizes all four world standard frequency bands known. if your phone is not 3G like you stated that means your phone will be capable of high speed data.
https://www.cheap-phones.com/what-are-dual-band-tri-band-and-quad-band-phones/
Dual-band phones released in the US will be useless in Europe or Asia due to network differences. Tri-band and quad-band phones run on a combination of three and four bands, which guarantee you that your phone will have service throughout the world.
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