2010 20 YEARS AVA Ltd.! 2009 Cooperation with B&W Installation of microwave links and swap to  HUAWEI- and SIAE-equipment for the mobile network operator O² in the region south. 2008 Cooperation with SYSIN Installation and swap BTS to HUAWEI-technology for the mobile network operator O² Cooperation with TCT Installation of microwave links and swap equipment of the manufacturers: HUAWEI, SIAE, ERICSSON und SIEMENS for the network operator O² Cooperation with SIAE Installation of SDH-microwave links for the mobile network operator D2 Cooperation with BTN Complete service of civil works for the mobile network operator O² in the region south and west. 2007 Cooperation with Ericsson Successful implementation of the 2G-BTS-swap for the mobile network operator D2 in the region north-east and east. 2004 Cooperation with Telent Extension of the services of Civil Works – complete service including the necessary infrastructure 2001 Opening of a branch in Dresden Imprint