Call One is a unique, full service technology/telecommunications company for mid-market firms, located in Chicago, IL. Working with over 60 leading carriers, we consolidate and unify your voice, data and mobile communications – giving you more time and energy to focus on your core business.
How would you like a telecommunications system customized around your business needs? Whether you need voice services, data products, SIP trunking or Internet services, Call One provides it all. You receive a single invoice, even while you enjoy the benefits of multiple carriers.Find Out More
Stay nimble, efficient and scalable. Call One constantly investigates new technologies to introduce to our clients to keep them on the technical edge.
We have a 20-year track record of helping organizations streamline and upgrade. Among our thousands of customers are police departments, school districts and municipal governments. If life safety and child safety organizations trust us to keep the lines of communication open 24/7/365, you can, too.
Learn More about Simplification as a Service Now
Because Call One is the Suburban Purchasing Cooperative’s preferred provider, we accepted their offer to audit our phone bills. When we learned how much we could save, without having to switch from the AT&T infrastructure, we moved to Call One service right away. For over 5 years we’ve benefitted from their amazing customer service and their dedication to keeping us informed of any additional savings they can offer.