Telecommunication protocols are standardized rules that govern how data is transmitted over communication networks. They ensure that devices, such as computers and smartphones, can communicate effectively by defining the format, timing, and error-checking methods for data exchange. Common examples include TCP/IP and HTTP, which are essential for internet communication. These protocols enable different systems to work together, regardless of their underlying technology. By following these guidelines, manufacturers can create compatible devices and software, facilitating seamless communication. This interoperability is crucial for services like email, video calls, and web browsing, which rely on these protocols to function properly.