Installation, Repair & Programming

For over 25 years, has been a trusted provider of office phone systems for businesses of all sizes. We offer both new and refurbished business phone systems with warranties ranging from 30 days to 36 months, so you can find a solution that fits your budget and needs. Whether you’re just starting out or expanding your operations, we have office phone systems for virtually any application.

At, we’re proud to provide office phone system repair services for discontinued office phone systems. Our experienced team has successfully fixed many business phone systems that other vendors deemed unfixable, saving our clients the expense of purchasing a new system.

Using CAT5e & CAT6 wiring infrastructure our technical services team can get your network up and running. We provide voice & data wiring for phones, PCs, printers, credit card machines, and fax machines. No project is too big or small for our team, whether you need a single printer jack or jacks wired throughout the entire office.

MAC’s – Moves, Add-Ons, & Changes. Do you need to relocate your office phone system to a new office or building? Do you need to add additional lines or extensions to your existing phone system? Do you simply need to make changes to your existing business phone system such as moving a phone or changing names on extensions?

Contact us today to learn more about our phone systems and services, and don’t hesitate to ask for a free estimate over the phone. 773-340-7777


A hosted VoIP system is where the PBX or main switch is located off-premise in the “cloud”.


Office Phone systems repaired. Iteleco is one of the few remaining business phone system providers that still repair the legacy phone systems such as Avaya, AT&T, NEC, Panasonic, Nortel, and Vodavi to name a few


Digital Business Phone Systems are still the most common commercial phone systems in use today.

Voice & Data Cabling

Wiring for business phones, pc’s, printers, & fax’s
CAT5e & CAT6 cable
Professional Installers