Smartphones continue to improve in the 'smart' areas: better screens, faster processors, more memory, etc., but there's not been a lot of innovation in the phone aspect of those devices. HD voice technology can change that, but since its introduction in 2009 hi-fi calling was only available on GSM networks until now. Ericsson has just made the first HD voice call via CDMA -- made possible by a new Enhanced Variable Rate Codec Narrowband-Wideband (EVRC-NW for the awkward acronym-loving crowd). The cod
