Frequency band celluar phones operate at india?

[Paramjit]

I would like to know in which frequency band does cellular phones
operate in India ?

[Rob Dizzle]

Most phone networks across the world use a mix of four frequencies; 850 MHz, 900 MHz, 1800 MHz and 1900 MHz.
Dual band phones can use 900 MHz and 1800 MHz frequencies and work in most European countriesTri band phones are able to use 900 MHz, 1800 MHz and 1900 MHz and work on most European networks, as well as some networks in the USA, Canada, the Caribbean and South America
Quad band phones are able to connect to all four frequencies – 850 MHz, 900 MHz, 1800 MHz, and 1900 MHz
3G
In addition to GSM bandwidths 3G handsets also use W-CDMA 2100 (Wideband Code Division Multiple Access) to provide the 3G features, such as video telephony, increased data speeds etc. This appears to give the handset an extra 'bandwidth' but it does not change a tri band handset to quad band, dual band to tri band etc.

[Nikita.P]

Indian network operators use GSM-900Mhz 1800Mhz for it's operations

[nitesh mehta]

GSM (Global System for Mobile Communications) provides integrated voice mail, high-speed data, fax, paging and short message services capabilities. GSM customers enjoy secure communications, and GSM offers unparalleled call privacy and fraud prevention GSM operates on the multiple spectrum frequency bands used around the world - 1900MHZ, which is used in North America and 900MHz and 1800 MHz for other locations. Different mobile phone networks operate at different frequencies, which means that if you wish to use your mobile phone outside your home country, you generally need a handset that supports multiple frequency bands. Make sure that the celluar phone you are interested in is compatible with the GSM band of the country you will use it in. As a general Guideline:

Dual-band - A dual-band phone operates at both the 900 MHz and 1800 MHz spectrum. Dual-band works in Europe, Africa, Asia, Australia, New Zealand and much of South America.

Tri-band - 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.

Quad-band - A quad-band phone allows you to roam almost anywhere globally. It covers the 850 Mhz, 900 MHz, 1800 MHz and 1900 MHz frequency ranges. Many countries in South America only have 850 MHz GSM service while both 1900 MHZ and 850 MHz GSM services are supported in the USA.
99% of all countries use the GSM standard. WE believe eventually GSM will be the only cell phone standard in the world.

India uses Dual band for telephony

[srikanth1k]

dual band means that the phone operates only in 2 frequencies. that does not necessarily mean 900/1800. in usa dual band phones have the frequency 850/1900. and obviously they donot work in india. thats why in US the cellphone providers recommend carrying a quadband phone or the least triband phone to use their phone in overseas destinations.

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