T-Mobile, Ubiquisys and Huawei Co-Operate on Femtocell Interoperability Tests

• First multi-vendor tests of 3GPP standardised interface

T-Mobile, the mobile arm of Deutsche Telekom AG, Ubiquisys Limited (“Ubiquisys”) and Huawei Technologies ("Huawei") today announced the signing of a Memorandum of Understanding (MoU) to conduct femtocell Interoperability Testing (IOT) at T-Mobile’s labs over the next 6 months. These ground-breaking interoperability tests will involve Femtocells from both Ubiquisys and Huawei, which will communicate using the 3GPP’s new Iuh standardised open interface. They will be connected to a Huawei Femto Gateway into T-Mobile’s core network. T-Mobile, Ubiquisys and Huawei are committed to a scalable, multi-vendor femtocell market based on open standards. Today’s announcement paves the way for operators to select standards-based Femtocells and Femto Gateways from multiple vendors, safe in the knowledge that they will be fully compatible with each other and their core networks. Klaus-Jürgen Krath of T-Mobile said: "T-Mobile has a long track record of practical innovation in the mobile industry. We are active members of the Femto Forum and the standards bodies, we have completed comprehensive femtocell trials with Ubiquisys and Huawei, and we have made a strategic investment in Ubiquisys. These IOT-tests will demonstrate for the first time that femtocell interoperability is becoming a reality." "To reach their full market potential, Femtocells must be more like mobile phones - interchangeable with the network they connect to," said Will Franks, CTO and Founder, Ubiquisys. "As a pioneer in this industry, we designed our Femtocell from day one to connect to multiple Femto Gateways, ready for the introduction of a 3GPP standardised interface. We are delighted to be working with T-Mobile and Huawei to demonstrate the huge potential of femtocell interoperability." Wan Biao, President of Huawei Wireless Product Line said, "We are very pleased to partner with T-Mobile and Ubiquisys for this IOT. This cooperation will be an important step for the whole Femtocell industry ecosystem. Since 2005 Huawei began the research on Femtocell and has become a leading E2E solution provider with deployments of Femtocell commercial and trial networks across the world. 2010 will see the transition for Femto to the mass market. Huawei will devote to the standardization and maturity of the industry together with the operators and other vendors."

About Deutsche Telekom AG Deutsche Telekom is one of the world’s leading integrated telecommunications companies with more than 150 million mobile customers, about 40 million fixed-network lines and nearly 17 million broadband lines (as of June 30, 2009). Its product brands are T-Home (fixed-network telephony, broadband Internet), T-Mobile (mobile communications), and T-Systems (ICT solutions). As an international Group with over 261,000 employees operating in around 50 countries worldwide (as at: June 30, 2009), Deutsche Telekom generated more than half of its revenue - EUR 61.6 billion - outside of Germany in 2008. About Ubiquisys Ubiquisys is the specialist femtocell company recognized by the World Economic Forum as a 2009 Technology Pioneer. Its consumer and enterprise femtocells are deployed worldwide as standalone units or as part of integrated access devices. Ubiquisys investors include Accel Partners, Advent Venture Partners, Atlas Venture, Google and T-Mobile Venture Fund. For more information, visit www.ubiquisys.com About Huawei Huawei is a leader in providing next generation telecommunications networks, and now serves 36 of the world’s top 50 operators, along with over one billion users worldwide. The company is committed to providing innovative and customized products, services and solutions to create long-term value and growth potential for its customers. For more information, please visit www.huawei.com.