In a code division multiple access (CDMA) system a dispatch call is established between two mobile units (10) and (12). The system includes a CDMA 2000 system providing for the dispatch data services. This requires that messages and bearer traffic are processed by radio link protocol. The CDMA 2000 system supports the FCH and DCCH channels. If the speaker's forward link is link limited, (26), then a DCCH channel is assigned to the speaker, (28). If the speaker's reverse link is link limited then a FCH channel is assigned to the speaker. In addition if there is a low battery level of the speaker, an FCH channel is assigned to the speaker, (30). When the speaker changes, (40), the FCH and DCCH channels for the speaker and listener are switched dynamically, (44-48).

 
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