Call Processing

The call flows for 2G CDMA are shown next. It is important to note that 2G
CDMA is primarily a voice and not a data-oriented system. However, data
is available to be sent via circuit-switched methods, but the call processing
flow is the same as voice since it still utilizes a traffic channel set up for
voice transport. The first call-processing flow chart is for a mobile-to-land call (origination), shown in Figure 3-26, while Figure 3-27 illustrates a landto-
mobile call (termination).