Converged Communication Systems
Chicago Headquarter CCS Avaya Support Group
Nationwide Sales and Support: 877-950-7999
Email us at
Your premier Wisconsin Avaya Partner!
Converged Communication Systems
Converged Communication Systems
Converged Communication Systems
Converged Communication Systems is a premier Avaya partner sales, services, support, and maintenance provider for business telephone systems and data networking products. We specialize in Avaya Communication products, however work with many other phone system and data product manufacturers to provide a complete solution based around your business needs. We specialize in serving the Wisconsin area focusing primarily on the Milwaukee and surrounding suburbs. For more information call our centrally located Avaya northern Chicago based support, dispatch, and distribution center at 877-950-7999. Also, visit our headquarter website for more information at

Converged Communication Systems, LLC, is a full Avaya sales distributor serving the Milwaukee, Wisconsin, area and providing nationwide Avaya professional services, Avaya support, and Avaya maintenance. Our centrally located Chicago based support headquarters, dispatch and distribution center allows us to serve customers on the east coast and west coast. We specialize in small business Avaya solutions as well as Avaya enterprise class telephony solutions focusing around your business needs. We are a full in-house sales and support organization that also focuses on your data network and voice and internet service provider needs working with a number of telephone service providers and VoIP providers nationwide to provide a complete solution.

Current Avaya Customers:
We work with all current and older Avaya phone systems, Lucent phone systems, and AT&T phone systems. Our goal is excellent customer service. We support your older technology can support you fully and provide upgrades, migrations, maintenance, moves, adds, changes, etc to keep your investment protected. Some older AT&T and Lucent phone systems include: Partner®, Partner Endeavor®, Partner II®, Partner Plus®, Partner®, ACS, Merlin® 206, 410, 820, Merlin Plus®, Merlin® 1030, Merlin® 3070, Merlin® II, Merlin Legend®, Merlin Magix®, Spirit 308, Spirit 616, Spirit 1224, Spirit 2448, Comkey, 1A, System 25, System 75, Definity® BCS, Definity® Prologix, Definity®, Definity® G3, Definity® G3si, Definity® G3r, Definity® ECS and more.

Your premier Avaya Wisconsin BusinessPartner:
We specialize in small business telephone systems and large enterprise phone systems. Converged Communication Systems partnership with Avaya Milwaukee can provide Avaya sales, Avaya service, Avaya support, Avaya maintenance, Avaya installation, and Avaya programming services, the CCS Support Group can help with your IT and telecommunication infrastructure. Contact us at 877-950-7999 for more information, to setup a free Avaya demo, for a free phone service analysis and more.

Call our Avaya Converged Headquarters at 877-950-7999

Avaya Converged Wisconsin Support Group and the CCS Nationwide Sales and Support division is ready to assist with your voice and data equipment needs. We service principal cities and surrounding areas ranging from Avaya Madison, Avaya Kenosha, Avaya Janesville, Racine, La Crosse, West Allis, Eau Claire, Oshkosh, and Green Bay. Contact us at 877-950-7999 for more products and services. Check out our spotlight customer in Janesville, Wisconsin, and see how we helped this multiple location customer leverage the Avaya IP Office by using VoIP technology and unified communications to help business efficiencies.