Die Berliner Verkehrsbetriebe (German for Berlin Transport Company) is Berlin's main public transport company. BVG manages the city's underground railway (U-Bahn), tram, bus and ferry networks. The company uses TETRA communications is its underground and Tetrapol in its overground operations.
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Helsinki Region Transport (HSL) is a joint local authority whose member municipalities are Helsinki and its neighboring cities Espoo, Vantaa, Kauniainen, Kerava, Kirkkonummi, Sipoo, Siuntio and Tuusula.
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Régie Autonome des Transport Parisiens (RATP), is the transportation company for the urban areas of Paris, France. The company uses a Airbus TETRA system for their communications over the whole area.
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Shenzhen Metro has used TETRA communication since 2004 in line #1. Shenzhen is the first city in China that interconnect TETRA systems between different metro companies and their metro lines.
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The Nanjing Metro is the metro system serving Nanjing, the capital of Jiangsu Province, China. TETRA solution provides voice and data services to staff operating Nanjing Metro's urban rail system.
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Guangzhou Metro is the metro system of the city of Guangzhou in the Guangdong Province of China. Airbus has provided a secure TETRA communication system, which has been in operation since September 2005 for its metro lines 1, 2, 4, and 8.
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Shenyang Metro is the metro system for the city of Shenyang, Liaoning province in China.
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