an apparatus for use with a first rj - type female receptacle having an open , plug receiving end and an internal cavity , the first rj - type female receptacle designed to receive a corresponding first modular mating rj - type male plug , the apparatus having : a housing having a front face , a top wall , a bottom wall and side walls defining an opening formed within the front face ; and the apparatus received in the first rj - type female receptacle , and the opening dimensioned to receive a second modular mating rj - type male plug , wherein the second modular mating rj - type male plug is dimensioned smaller than the first modular mating rj - type male plug .