The Voice Modular Jacks, RJ-11 Keystone Jacks 6-Position 6-conductor (6P6C), is designed for business system applications. The Modular Jacks utilizes IDC Termination, accepts 22-24 awg solidid wire. Termination can be done using 110 Punch Down Tool, or by using the Termination Cap for fast and easy Termination. For use with applications: Apple Talk, Voice, and Arcnet. Compatible with RJ11/14 and 25 Keystone Jacks and Plugs.