Name: Telephone three links (4 core)
Interface Description: RJ11 four core 6P4C jack, copper contacts, to ensure low impedance connection. Quality is much higher than the market of ordinary products! Carefully selected oxygen-free copper (OFC) conductor contact terminals, anti-interference ability, signal The attenuation coefficient is low
1. For a telephone line out of multiple branches (all lines only physical connection)
2. Can also be connected to a single extension telephone line. Simple and easy to use!
(Note: such products can not replace the telephone exchange to achieve two independent telephone calls at the same time)