Telefonica Deutschland has announced that it has successfully implemented Enhanced Voice Services (EVS) within its national LTE network, enabling O2 customers to make calls in full HD voice quality. To benefit from the new standard, users require access to the LTE network and a mobile device that supports VoLTE or VoWiFi. In addition, the device manufacturers must have activated EVS in the O2 network via a current firmware update. Updated handsets currently include the Samsung Galaxy models S8 and S8+, while Sony offers a firmware update for the models Xperia XZ1 and XZ1 Compact, Xperia XZ Premium, Xperia XZ2 and XZ2 Compact. Other device manufacturers and phone models will follow in the coming weeks and months. In addition, full HD voice telephony is also possible to the mobile networks of Vodafone and Telekom Deutschland.

‘With the introduction of Enhanced Voice Services, we will offer customers in our O2 mobile network a unique and crystal-clear full HD voice quality,’ said Cayetano Carbajo Martin, CTO of Telefonica Deutschland, adding: ‘By continuously improving our voice services, we are once again significantly increasing the user experience in our network and taking a further step towards becoming Mobile Customer & Digital Champion.’