Whats CDMA?
CDMA refers to a technology designed by Qualcomm in the US that utilizes spread spectrum communications for the radio link. Rather than sharing a channel as many other network air interfaces do, CDMA spreads the digitized data over the entire bandwidth available, distinguishing multiple calls through a unique sequence code assigned. Successive versions of the IS-95 standard define CDMA usage in the US, which is the reason why the term CDMA is often used to refer to IS-95 compliant cellular networks. IS-95 CDMA systems are sometimes referred to as cdmaOne. The next evolutionary step for CDMA to 3G services is cdma2000, TIA/EIA/IS-2000 SeriesF1F, Release A, based on the ITU IMT-2000 standard. Both Verizon and Sprint operate nationwide CDMA networks in the US.
