In order to combat shrinking revenues--driven by users' moves toward over-the-top messaging and calling services--European operators are increasingly looking toward a range of strategies that could include premium LTE pricing tiers, combined fixed-mobile products and other tools. As FierceWireless:Europe Editor Anne Morris points out in her latest feature, there are opportunities for operators to exploit their biggest assets and maintain average revenue per user, particularly as they roll out LTE services, according to analysts and executives from operators and vendors. For example, EE in the United Kingdom charges a $6 average premium on its LTE plans and stresses that it believes this premium is sustainable in the future based on its performance so far. "We absolutely believe a premium will be sustainable," an EE spokesperson said. "We are very clear on rolling out the best and fast 4G services." For more on this topic check out Morris' special report.