A method, communication system, and two-way radio provide for improved voice controlled channel change through detection of a voice command input at the two-way radio to change a dispatch communication channel from a current channel to a target channel, the voice command including a target channel name. A computed channel change confidence level is compared to a channel change confidence threshold. The channel change confidence threshold(s) may be adaptively configured based on channel context parameters monitored by two-way radio itself and/or monitored by the system. User alerts, inquiries, and/or confirmation request are generated in response to m moderate channel change confidence levels.