Oppo’s MeshTalk lets you call and chat without Wi-Fi or cellular networks

Oppo has announced a new proprietary communications technology designed to let people call or chat across medium distances without using cellular networks, Wi-Fi, or Bluetooth. The protocol is called MeshTalk and is a decentralized, end-to-end system that Oppo says can cover up to 3 kilometers (1.86 miles) outdoors — or even further in more crowded environments when signal relay between devices can be used.

Basically, Oppo devices will be able to create ad hoc local area networks across a wide area and communicate directly to each other without the need for base stations. The company claims that MeshTalk doesn’t have a significant effect on battery life, and indeed plans for it to work with a 72-hour standby mode so that phones can...

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