<p><a href="https://en.wikipedia.org/wiki/CDMA2000#1X">1 times Radio Transmission Technology</a> (1xRTT) is the first version of the
<a href="https://en.wikipedia.org/wiki/CDMA2000">Code-Division Multiple Access 2000</a> (CDMA2000) standard, which is the 3G update of the older 2G
<a href="https://en.wikipedia.org/wiki/CdmaOne">Code-Division Multiple Access One</a> (CDMAOne).
<p><a href="https://en.wikipedia.org/wiki/CDMA2000#1X">1 times Radio Transmission Technology</a> (1xRTT) is the first version of the
<a href="https://en.wikipedia.org/wiki/CDMA2000">Code-Division Multiple Access 2000</a> (CDMA2000) standard, which is the 3G update of the older 2G
<a href="https://en.wikipedia.org/wiki/CdmaOne">Code-Division Multiple Access One</a> (CDMAOne).