RJ-11 cables are designed for voice communication, often connecting telephones to wall jacks. They typically have two to six conductors, depending on the application. While most homes use the four-conductor type, advanced setups may require more. Their modular design makes installation quick and cost-effective. In offices, RJ-11 cables still serve as a backbone for intercoms and landl... https://enableit.com/differences-between-rj11-rj12/