Carriers Vodafone UK and 3 Austria have issued statements elaborating on problems with the iPhone 4S and iOS 6.1. "Weíre aware of an issue caused by Apple iPhone 4S handsets that have been upgraded to iOS 6.1 which impacts performance on 3G. Some customers may occasionally experience difficulty in connecting to the network to make or receive calls or texts or to connect to the internet [sic]," Vodafone's notice begins.
