MojoKid writes "Fraunhofer IIS has chosen Mobile World Congress as the place to present the world's first Full-HD Voice mobile phone calls over an LTE network. Verizon Wireless has toyed with VoLTE (Voice over LTE) before, but this particular method enables mobile phone calls to sound as clear as talking to another person in the same room. Full-HD Voice is already established in several VoIP, video telephony and conferencing systems. However, this will mark the first time Fraunhofer's Full-HD Voice codec AAC-ELD has been integrated into a mobile communications system. Currently, the majority of phone calls are limited to the 3.5 kHz range, whereas humans are able to perceive audio signals up to 20 kHz. The Full-HD Voice codec AAC-ELD gives access to the full audible audio spectrum."