Lira (ISS)
The Lira system is a two-way communication system used between the International Space Station
International Space Station
The International Space Station is a habitable, artificial satellite in low Earth orbit. The ISS follows the Salyut, Almaz, Cosmos, Skylab, and Mir space stations, as the 11th space station launched, not including the Genesis I and II prototypes...

 and Mission Control via the Russia
Russia or , officially known as both Russia and the Russian Federation , is a country in northern Eurasia. It is a federal semi-presidential republic, comprising 83 federal subjects...

n Luch relay satellite constellation, also known as Altair.
The ROS (Russian Orbital Segment
Russian Orbital Segment
The Russian Orbital Segment is the name given to the components of the International Space Station constructed in Russia and operated by the Russian Federal Space Agency...

) communication Subsystems can receive commands directly from ground stations through the Regul Subsystem and can receive commands from the LUCH satellite through the Lira or the Regul System.
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