scope:

This second edition European Telecommunication Standard (ETS) is part of the Digital Enhanced Cordless Telecommunications (DECT) Common Interface (CI) and specifies the speech coding and transmission requirements. In order to ensure satisfactory interworking of different portable and fixed units, it is necessary to specify the transmission performance of the analogue information over the digital link. This requires not only use of a common speech algorithm, but also standardization of frequency responses, reference speech levels (or loudness) at the air interface and various other parameters.