Vodafone said its German business has secured spectrum for mobile data and voice services in the Federal Network Agency's auction for a total cost of €2.09bn (£1.49bn).The FTSE 100 group said the spectrum acquired will enhance Vodafone Germany's 4G network, increasing data traffic capacity and speed on 4G while improving voice quality on GSM services.Vodafone shares were up 0.27% to 233.74p at 13:33 on Friday.