Oppo, the brand known for its revolutionary selfie camera technology has been fighting too hard to proof itself among the few world renowned tech giants and it's efforts could be almost paying off. While all the focus was on the under screen camera launch, Oppo decided to throw another surprise when it announced it's latest invention known as the mesh talk technology. At the MWC Shanghai on Wednesday 26th, Oppo said they have invented a way that can allow it's users send text and make voice calls without any cellular network, WiFi or Bluetooth connection. Though this will be quite useful during emergency situations, I am certain that no network operator will welcome this move like they rushed for 5G, and it is for two obvious reasons. The mesh talk will allow Oppo devices within a 3 Km radius communicate directly with each other by creating an ad hoc local area network(LAN), and this can be extended through a signal relay. This will allow free calls text and group chats wit...