Find the right modular plugs for all your telephone and specialty communication system needs. This category contains our full range of 4-position (4P4C, often called RJ11) and 6-position (6P6C/6P4C, often called RJ12) telephone connectors. It also includes less common plugs like our 10-position (10P10C) connectors used in specific industrial or data systems. These are the standard plugs used for terminating line cords, handset cords, and other multi-conductor flat or round cables.