While speaking at the Competitive Carriers Global Expo, Sprint’s senior vice president of networks Bob Azzi said that while the company has experienced success with its WiMAX handsets, it will not launch any additional WiMAX devices. The announcement comes after Sprint previously confirmed that it would continue to offer 4G WiMAX devices through 2012 and support the service through 2015. Instead, the company plans to focus on its Network Vision project and upcoming 4G LTE netowrk, Fierce Wireless reported on Thursday. “We are wrapping up final field integration tests,” Azzi said. “The technology works and delivers more benefits than we expected.” The executive noted that the company’s Network Vision project will result in a 50% reduction in cost-per-gigabyte to deliver data and cost-per-minute to deliver voice. “This is a huge benefit to us,” he said, adding that there are between 5,000 to 6,000 people devoted to the project, which is slated to be completed by the end of 2013.