Sprint to build WiMax network

First was Korea Telecom, with WiBro, now the first US carrier is seting up a 4G network using WiMax, so VoIP, and high speed services become real. WiMax will let carriers that where in 2G or 2.5G jump directly into a technology that will integrated both voice and data services together.

Sprint Nextel to Build 4G Network Using WiMax - Mobiledia -