The following article provides a good summary of the changes.
INTRODUCING COMMUNICATION SERVICES SECTOR IN 2018
The last several years have seen rapid evolution in the way people communicate, access entertainment content and other information. This evolution is a result of the integration between telecommunications, media, and internet companies. Companies have moved further in this direction by consolidating through mergers and acquisitions and many now offer bundled services such as cable, internet services, and telephone services. Some of these companies also create interactive entertainment content and aggregate information that is delivered through multiple platforms such as cable and internet, as well as accessed on cellular phones.