Black Box Resale Services has revolutionized what it means to offer refurbished communications equipment and services. They specialize in certified, high quality, refurbished equipment and repair services, all backed by the unmatched Black Box warranty. Our huge inventory boasts a variety of products that are in stock and ready to ship. Whether a client is in search of VoIP telephones, unified communication systems, business telephones, conferencing equipment or data centers, Black Box Resale Services is the top source. They carry the folllowing communications equipment brands: Nortel, Avaya, Cisco, Plantronics, Executone, ClearOne and Siemens.