Europe and Asia use dual-band through quad-band phones that are at the minimum able to operate in the GSM 900 and/or 1800 frequency bands. In North America (at least those that are carrier-based) are predominantly only dual-band phones, are in GSM or CDMA bands, and are SIM-locked.
Tri-band
Large international companies like Apple and Nokia usually sell quad band mobile phones, because quad band mobile phones can be used everywhere in the world.
it means a band consisting of four members...
its most power full than quad band
Yes
Yes
can you flash aAnalog TV Quad Band Dual SIM Touch Screen Cell Phone to cricket
The quad consists of the US, Canada, Japan, and the EU.
Apple's iOS4 is available for their mobile products such as the iPhone and iPod Touch. It is not available for cheap copies of the iPhone such as the Quad Band F073.
In telecommunications, the terms multi-band, dual-band, tri-band, quad-band and penta-band refer to a device (especially a mobile phone)
Basically, the difference lie on the frequency being used or supported. For GSM dual band phones, the frequencies that is can support are 900/1800 MHz or 850/1900 MHz; for tri-band phones, the frequencies are 850/1900/2100 or 850/1700/2100 or 900/1900/2100 MHz or 900/AWS/2100; and for quad-band phones, the frequencies are 850 / 900 / 1800 / 1900
Yes. They have the GSM network.