Important Notice: Our web hosting provider recently started charging us for additional visits, which was unexpected. In response, we're seeking donations. Depending on the situation, we may explore different monetization options for our Community and Expert Contributors. It's crucial to provide more returns for their expertise and offer more Expert Validated Answers or AI Validated Answers. Learn more about our hosting issue here.

What does Dual-band, Tri-Band, and Quad Band mean?

April 26, 2017Dual-band mean Tri-band

0

Posted

What does Dual-band, Tri-Band, and Quad Band mean?

1 Answer

0

Posted

That means how many frequencies the cell phone can pick up. Here is a basic chart of frequenies used in America: GSM: Cingular- 850MHz/1900MHz for GSM and 3G HSDPA/UMTS T-Mobile- 1900MHz for GSM, 1700MHz/2100MHz for 3G HSDPA/UMTS (Not launched yet) CDMA: Verizon-850MHz/1900MHz for CDMA and EV-DO Sprint- 850MHz/1900MHz for CDMA and EV-DO Alltel-850MHz/1900MHz for CDMA and EV-DO You cannot use a GSM phone on a CDMA network, and vice versa, even they use the same frequencies. Using a GSM phone around the world: Here is a list of band combinations phones come in.