What is Triband?

Answer 1

Three GSM bands used by mobile phones. There are four GSM bands around the frequencies 900MHz, 1800 MHz (Asia and Europe), 1900 MHz and 850MHz (North America/US). A GSM Cell phone that supports quad band will support all 4 of these bands. A triband GSM phone typically supports 900MHz, 1800MHz and 1900MHz and will do for most of the world. You will only lose out the 850MHz band in the US which should not be much of an issue.

See:
Triband: http://en.wikipedia.org/wiki/Triband_%28telephone%29
Quad Band: http://en.wikipedia.org/wiki/Quad_band
GSM: http://en.wikipedia.org/wiki/GSM

Answer 2

Triband phones (also known as tri-band) are mobile phones that support three frequency bands.

[edit] 2G

Various countries use different frequency bands for their mobile networks, and a triband phone can be used on three of these bands, generally speaking, chosen to favor two of the home country's bands, and one for roaming in other countries.

In summary GSM frequency bands used around the world are:

* 850 MHz (In America)
* 900 MHz (In Europe)
* 1800 MHz (In Europe and Asia)
* 1900 MHz (In America)

2G Triband phones are mobile phones that support the GSM 900/1800/1900 MHz bands (commonly sold in Europe, Asia, and Africa), or alternatively the 850/1800/1900 bands (commonly sold in the Americas).

A 2G Quad band (850/900/1800/1900) offers more coverage and is now really common.

[edit] 3G

Devices offering UMTS / HSDPA in 850/1900/2100 MHz bands (2100MHz for Europe and 850/1900MHz for America) or in 850/1700/2100 MHz bands (850 or 1700/2100 MHz for America) are available.

HSUPA / HSDPA / UMTS is a further evolution.

Note that being UMTS / HSDPA / HSUPA triband doesn't mean that phone is a GSM / GPRS / EDGE triband. An HSUPA triband could not being a GSM at all. However nearly all HSUPA (or HSDPA only) triband are EDGE quad band too.

Some HSDPA 850/1900/2100 triband are already available: HTC TyTN, HTC Advantage X7500; Huawei E800 Data Card (ExpressCard); i-mate JASJAM, Ultimate series 5150 6150 7150 8150 9150 (all five available alternatively in 850/1700/2100 bands).

Some HSUPA 850/1900/2100 triband are already available: Huawei E270 Wireless modem (USB); Novatel Wireless Merlin X950D ExpressCard ; Option GlobeTrotter Express HSUPA, GlobeTrotter GT MAX HSUPA, GlobeSurfer iCON HSUPA, GTM380; Sierra Wireless AirCard 880 and the AirCard 881 (PC Card), AirCard 880E and the AirCard 881E (ExpressCard) and MC8780 and the MC8781 (PCI Express).

Answer 3

Bands are the systems different world regions use as standards to connect to the cellular (mobile phone) network.
There are 3 - Europe, U.S. and Asia.
A triband phone will be able to operate in all 3 regions.

Answer 4

Lots of nice long techincal answers from my learned freinds above!

What you need to know is that a have a triband means that it will work in USA and Caribbean, dual band won't.

Answer 5

triband is a thing in the mobile that let it work in other countries but only certain ones like Europe and theres quad band witch is much better and works in more countries

Answer 6

basically the three continents mentioned and 46 countries