The following were also verified: ▪ the energy efficiency aspects required by the EuP (Energy-using Products) Directive: equipment placed on the market is checked against the stand-by/off-mode power consumption and performance limits set by European Regulations 801/2013/EC and 278/2009/EC, for equipment and their external power supplies (available as accessories); ▪ functionality in different environmental conditions of installation and use of terminals and accessory components for connection to the fixed network: checks are carried out on compliance with temperature and humidity ranges established by ETSI (European Telecommunications Standards Institute) for the specific “service condition”, on which different “severity” levels are based.