CAT3 Phone Jack: The CAT3 is applied to connect two telephone lines; The RJ11 6P4C interface is compatible with most RJ11 devices such as landline, fax or answering machines.
Easy to Connect: You just need to plug 2 phone cables and make it longer, extend your existing short phone line to a long distance, you only need to insert one phone line into the front of the female to female jack wall plate.
Plug-in Design: this coupled CAT3 telephone line interface can be inserted into most standard size blank wall plates , such as CAT6 ethernet panel, speaker panel and other panels, etc.
Good Quaility: It has high fidelity sound quality, simple and practical, high fidelity design, exquisite workmanship, strong anti-interference ability and low signal attenuation coefficient.
Small and Exquisite: Compact and durable compress all the spare space, accurate signal transmission, high efficiency and durability.