Just about everyone needs to be connected, which is why telecommunications technicians work everywhere. They set up systems that serve residential and business customers, including schools and hospitals. They may work for utilities, telecommunication companies or construction companies.If your cable or internet service has ever gone down, you know that fiber optic and cable technicians also answer emergency calls. They work indoors and outdoors to make sure the problem is solved. Frequently, they use a bucket truck to reach the cables, but all fiber optics and cable technicians must be able to climb the poles where the lines are typically attached.