Digital Enhanced Cordless Telecommunications (DECT) - Common Interface (CI) - Part 8: Speech and audio coding and transmission (ETSI EN 300 175-8 V2.5.1 (2013-08))
Digital Enhanced Cordless Telecommunications (DECT) - Common Interface (CI) - Part 8: Speech and audio coding and transmission (ETSI EN 300 175-8 V2.6.1 (2015-07))