COBS AB is a provider of products and services such as telecommunications services, microwave,fibre optics installation contractors, telecommunications,private telephone system installation contractors, commercial and industrial,transmitting tower (telecommunication) construction,telecommunications research and development,telecommunication systems, satellite, mobile,integrated services digital network (isdn) switches,telecommunications equipment, time division duplex (tdd),emergency call systems for motorways,image transmission and compression-expansion equipment,voice over dsl (vodsl) equipment,voice data systems, private networks,integrated voice mail systems, private networks,telephone branch exchanges, private, internet protocol (ip pbx/voip pbx),key system/key telephone systems,telecommunications network equipment, fibre to the curb systems (fttc),telecommunications network equipment, fibre to the home systems (ftth),telecommunications network equipment, fibre in the loop systems (fitl),telecommunications network equipment, hybrid fibre-coaxial (hfc),photonic networking systems,local multipoint distribution service (lmds) network equipment,telephone switchboards,educational equipment, telecommunication.