LUXEMBOURG -- Tango, Luxembourg’s innovative telco operator, has become the country’s first to offer 4G mobile broadband services and provide personal mobile data service plans. Nokia Siemens Networks implemented its Liquid Core network and its Circuit Switched FallBack (CSFB) system as the sole core supplier for the launch of the Tango 4G, LTE (long term evolution), services. In addition, Nokia Siemens Networks implemented subscriber data management allowing the operator to provide country’s first personalized data tariffs. “We recently launched two services that are first for Luxembourg: 4G ultra-fast data and personalized data tariffs -- in addition to providing congestion-free services from our existing GSM and 3G networks,” said Didier Rouma, CEO, Tango. “Nokia Siemens Networks helped us to achieve these important goals. The company’s core network powered the launch of 4G services and to increase overall network capacity to meet the challenge of rising data traffic.” Nokia Siemens Networks implemented its Liquid Core-based Evolved Packet Core (EPC) platform, including Flexi NS (Network Server) and Flexi NG (Network Gateway) for the operator to replace outdated equipment and launch the LTE services. In addition to providing its Mobile Softswitching (MSS) that manages traditional voice calls, Nokia Siemens Networks implemented its CSFB voice solution. The CSFB solution enabled smartphones of 4G users to fallback to GSM and 3G networks from LTE so that subscribers enjoy voice calls alongside text messaging (SMS) and ultra-fast data services.Nokia Siemens Networks