Telecommunications engineering
![Telecommunications engineer working to maintain London's phone service during World War 2, January 1942 while all the power was off so he needed to find a power supply](/Images/godic/202501/05/The_Telephone_Service_Carries_On,_London,_January_1942_D64371538.jpg")
![Alexander Graham Bell's big box telephone, 1876, one of the first commercially available telephones - National Museum of American History](/Images/godic/202501/05/Alexander_Graham_Bell's_big_box_telephone,_1876,_one_of_the_first_commercially_available_telephones_-_National_Museum_of_American_History_-_DSC062231538.JPG")
![Marconi crystal radio receiver](/Images/godic/202501/05/Marconi_crystal_radio_receiver1538.jpg")
![Symbolic representation of the Arpanet as of September 1974](/Images/godic/202501/05/Arpanet_1974.svg1538.png")
Telecommunications engineering, or telecoms engineering, is an engineering discipline that brings together all electrical engineering disciplines including computer engineering with systems engineering to enhance telecommunication systems. The work ranges from basic circuit design to strategic mass developments. A telecommunication engineer is responsible for designing and overseeing the installation of telecommunications equipment and facilities, such as complex electronic switching systems, copper wire telephone facilities,fiber optics cabling,IP data systems,Terrestrial radio link systems for conventional communications and process information. Telecommunication engineering also overlaps heavily with broadcast engineering.