Nortel NT7B54FB-93 Modular ICS 0x32 Cabinet (Refurbished)The Norstar Modular Integrated Communications System (ICS) is a key system designed for growing small to medium businesses and is expandable up to 272 ports. Advanced integrated applications include voice messaging, unified messaging, digital networking, enhanced call centers and speech recognition. The Modular ICS can grow with your business through the addition of trunk and station modules as you need them. More Information Mnfr. Part #: NT7B54FB 93