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The push-to-talk ecosystem: Cellular, Wi-Fi, and unified platforms
![](https://www.securitymagazine.com/ext/resources/Issues/2020/July/Radio-Frequency/SEC0720-5G-Feat-slide1_900px.jpg?height=635&t=1593539059&width=1200)
![](https://www.securitymagazine.com/ext/resources/Issues/2020/July/Radio-Frequency/SEC0720-5G-Feat-slide1_900px.jpg?height=635&t=1593539059&width=1200)