ITC is a full service telecommunications company offering a wide range of products and services. Simply put we sell, install and maintain business telephone systems and related peripherals. Whether you have an existing system in need of service or interested in upgrading or even replacing your communication platform, ITC is positioned to support you. ITC is a full service telecommunications company offering a wide range of products and services. Simply put we sell, install and maintain business telephone systems and related peripherals. Whether you have an existing system in need of service or interested in upgrading or even replacing your communication platform, ITC is positioned to support you. Whether you have an existing system in need of service or are interested in upgrading or even replacing your communication platform, ITC is positioned to support you. No part of this site may be reproduced without prior written consent.