Orange Switzerland has announced the commercial launch of its LTE-A service in Berne, with the other major Swiss cities to follow in 2015, Telecompaper.com writes on Dec 11, 2014. The operator\'s LTE-A (4G+) technology allows customers to download at theoretical top speeds of 300 Mbps, around twice the highest speed currently available under a standard LTE network. Orange Switzerland also confirmed that prepay and postpay customers will not be charged extra to use LTE-A. The service will be made available automatically without making customers change their existing subscription, said Orange.