Telecom operator Vodafone Idea Ltd (VIL) on Sunday said it has started upgrading its 3G users to 4G in key markets. Further, the company said it is in the best position to upgrade 2G customers also to 4G, but it will continue with basic voice based services to its 2G subscribers.from Business News: Latest News on Business, Stock Markets, Financial News, India Business & World Business News https://ift.tt/2HqQHIL
