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I was listening to the 5G topic at 1:30pm today on 4/12/2019, information that was being broadcast was a little confuse. First D2D technology still requires cell site transmission no matter 4G or 5G platform. In tradition telco environment, the process power resides within the MTSO, we process all calls through MME or PE Routers and once the process had been completed, it will go back to the cell site and re transmit to hand unit. As for 5G technology or any technology that I know of know, the process or communication power doesn’t need to go back to the MTSO, we use new routers to perform cell site router to the neighbor list. With that being said M2M, or D2D doesn’t mean it can talk from cell phone to cell phone direct.