Information Technology and Services Networking, IP Telephony, Desktop/Server, Digital Imaging, Point of Sale (POS), Wireless Networking, Video Display/Signage, CCTV Surveillance, Telecommunications Services, Consulting, Contracting Services, Procurement Staffing, Residential and Business Class Telephone Services, Managed Web Services (Web Hosting, Email, Remote Backup Services, Exchange, Group Collaboration), Managed Security Services, Information Technology Services, Structured Cabling Services, and Telephone Systems. We sell, service, and repair all makes and model of telephone systems. ACG is an Interconnected VoIP Service Provider, registered as a Interconnected VoIP Service Provider (Public Utility) with the Illinois Commerce Commission and the Federal Communications Commission.