cdmaOne(tm) is a brand name, trademarked and reserved for the exclusive use of CDG member companies, that describes a complete wireless system that incorporates the IS-95 CDMA air interface, the ANSI-41 network standard for switch interconnection and many other standards that make up a complete wireless system. cdmaOne is a digital mobile phone standard based on the CDMA principle, which is used in North America, Korea and Japan. For migration to third generation mobile telephony, cdmaOne networks can be upgraded to the cdma2000 broadband standard. cdmaOne supports the following frequencies: Cellular and PCS Bands: 800MHz, 900 MHz, 1700MHz, 1800MHz, 1900 MHz and all IMT-2000 bands (cdma2000)

The first commercial CDMA cellular system; deployed in North America and Korea; also known as IS-95 CDPD

This is the brand name for the second-generation CDMA system defined under the IS-95 standard. It operates in the 800 MHz or 1.9 GHz radio frequency bands and uses 1.25 MHz-wide channel bandwidth.

Defines the 2G and 2.5G versions of CDMA technology. Based on IS-95A and IS-95B standards respectively.

Second-Generation (2G) CDMA, IS-95B.

CDMA ‹Zp‚Ì 2G ‚¨‚æ‚Ñ 2.5G ”Å‚ð'è‹`‚µ‚1/2‚à‚́B‚»‚ê‚1/4‚ê IS-95A ‚Æ IS-95B •W€‚ɏ€‹'B

2G CDMA (IS 95).