CDMA Question:

CDMA one refers original ITU IS-95 CDMA wireless interface protocol. It is considered as a 2G mobile wireless technology
The version IS-95A protocol employs a 1.25 Mhz carrier and data speeds up to 14.4 Kbps
The version IS-95B support data speeds up to 115 kbps by employing 800 MHz / 1.9 GHz.