Communications protocol

Some of the best-known communication protocols are those related to the Internet, web, and email, which are developed and published by the Internet Engineering Task Force (IETF), and World Wide Web Consortium. Many wired and wireless protocols are also well known, such as Ethernet, Bluetooth, and, of course, mobile phone standards. These are mostly handled by the IEEE (Institute of Electrical and Electronics Engineers, e.g., Ethernet). There is also the ITU-T, which handles telecommunications protocols & formats for the public switched telephone network (PSTN). As the PSTN and Internet converge, many protocols are trending towards convergence. The International Organization for Standardization (ISO) handles many other types.