BERLIN (dpa-AFX) - Mobile phone provider Telefónica, with brands such as O2 and Blau, wants to raise its prices. "More performance at the same price - unlike in the past - is no longer possible," Telefonica Germany CEO Markus Haas told the Handelsblatt newspaper. He referred to investments for network expansion. At the same time, he announced improvements in inclusive services. It was not a matter of "flat price surcharges," he said. Deutsche Telekom told the Handelsblatt that it was keeping "all options open" on the question of possible price increases. Vodafone declined to comment, it said./bf/DP/mis