https://www.tongdaswitch.com/
Yueqing Tongda Wire Electric Co., Ltd. is developing and manufacturing industrial control switches, such as micro switch, rocker switch, telephone hook switch
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https://www.microcenter.com/product/655589/just-hook-it-up-rj-11-male-to-rj-11-male-modular-telephone-line-cable-7-ft-white
Get it now! 4-conductor. Use to extend or replace existing modular line cords. For use with single phone line. Can be used to add answering machines, fax...
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