2018DIN EN 300175-4:2018 Digital Enhanced Cordless Telecommunications (DECT) - Common Interface (CI) - Part 4: Data Link Control (DLC) layer (Endorsement of the English version EN 300 175-4 V2.7.1 (2017-11) as German standard)
2015DIN EN 300175-4:2015 Digital Enhanced Cordless Telecommunications (DECT) - Common Interface (CI) - Part 4: Data Link Control (DLC) layer (Endorsement of the English version EN 300 175-4 V2.6.1 (2015-07) as German standard)
2013DIN EN 300175-4:2013 Digital Enhanced Cordless Telecommunications (DECT) - Common Interface (CI) - Part 4: Data Link Control (DLC) layer (Endorsement of the English version EN 300 175-4 V2.5.1 (2013-08) as German standard)