Vodafone Germany has revealed that so far around 73% of its network has been upgraded across the country as part of its nationwide EUR4 billion (USD4.4 billion) infrastructure modernisation programme, which is expected to be completed next year. Around 85% of all large cities, as well as over half of all stadiums, airports, subways and ICE stations, and 84% of all highways routes, are now able to benefit from Vodafone’s upgraded mobile network. The operator claims that the work has increased the average surf speed for its customers by more than 30%, while its LTE network has been expanded to cover 77% of the population and Voice-over-LTE (VoLTE) has been rolled out nationwide. Over five million LTE customers are able to access mobile data rates of up to 100Mbps and at selected locations the 4G network is able to deliver maximum download speeds of 225Mbps. Vodafone is replacing hardware and software to improve the voice quality of its network and to double 3.5G data transfer rates to 42.2Mbps through the rollout of Dual Carrier (DC)-HSPA+ technology across the entire UMTS network.