VHF air-ground and air-air Digital Link (VDL) Mode 4 radio equipment; Technical characteristics and methods of measurement for aeronautical mobile (airborne) equipment

Die Norm herausgegeben am 10.11.2011

Digital Enhanced Cordless Telecommunications (DECT); New Generation DECT; Additional feature set nr.1 for extended wideband speech services; Profile Test Specification (PTS) and Test Case Library (TCL)

Die Norm herausgegeben am 15.1.2014

Digital Enhanced Cordless Telecommunications (DECT); New Generation DECT; Additional feature set nr.1 for extended wideband speech services; Profile Test Specification (PTS) and Test Case Library (TCL)

Die Norm herausgegeben am 8.8.2022

User Group; Quality of Telecom Services; Conformity assessment; Requirements for bodies providing QoS audits and surveys

Die Norm herausgegeben am 4.10.2010

User Group; Quality of Telecom Services; Conformity assessment; Requirements for bodies providing QoS assessments and surveys

Die Norm herausgegeben am 29.11.2010

User Group; Quality of ICT Services; Requirements and Method for checking Metering and Billing systems

Die Norm herausgegeben am 18.11.2009

User Group; Quality of ICT Services; Requirements for Check-up on Metering and Billing Processes

Die Norm herausgegeben am 13.8.2010

User Group; Quality of ICT Services; Requirements for Check-up on Metering and Billing Processes

Die Norm herausgegeben am 15.10.2018

User Group; Quality of ICT Services; Requirements for Bodies Providing Conformity Assessment of Checking-up on Metering and Billing Processes

Die Norm herausgegeben am 4.6.2010

User Group; Quality of ICT Services; Standardization and regulation references in the Metering and Billing area

Die Norm herausgegeben am 7.6.2010