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CSI - A company dedicated to providing AT&T Champion Service for 15 years in a row!


Communication Systems International's (CSI) community involvement, visibility and proven commitment to excellence, aligns us with the pulse of today's business needs. Armed with this knowledge, CSI can provide you with information, options and solutions designed and engineered for your individual needs. CSI can show your company how to incorporate your communications as a valuable tool that will help you to control company efficiency, potential profit and company growth. Learn more about us.


AT&T® has set forth the standards necessary to provide you with AT&T® treatment. As an AT&T® Solution Provider Champion, CSI must meet rigorous criteria in order to gain this coveted status. An AT&T® Solution Provider Champion status requires a total staff commitment to continual product and applications training, to providing outstanding customer service, and to a strict adherence to professional standards of conduct. AT&T® has recognized CSI for 16 years in a row, as a partner that can meet the AT&T® Solution Provider Champion requirements.

  Windstream Authorized Agent  

CSI is your Windstream Contact. Windstream, formerly Norlight, has a 30+ year history of dynamic growth and innovation. We strive to help the business and residential consumers of Indiana, Kentucky, Tennessee and Wisconsin communicate more effectively.

  Centurylink Authorized Provider  

Customers coast-to-coast turn to CenturyLink's industry-leading national fiber-optic network and world-class customer service to meet their communications and entertainment needs. For residential customers, CenturyLink offers a new generation of fiber-optic Internet service, high-speed Internet solutions, as well as digital home phone, wireless service available through Verizon Wireless, and DIRECTV® service.

  Nitel authorized agent  

Nitel is a leading single-source provider of telecommunications network services nationwide. Customers partner with us to simplify procurement, billing and maintenance of wholesale network services across a multitude of disparate networks. Nitel gives our customers maximum reach by leveraging the networks of 100 top-tier carriers, including AT&T, Level 3, Verizon, Qwest and Global Crossing, to ensure the best network at the best price.

  XO Communications authorized agent  

XO Communications is one fo the nation's largest communications service providers focused exclusively on businesses, government, domestic and international telecommunications carriers, cable companies, content providers and mobile wireless companies. With solutions built around you, SO Communications offers customers the right network, the right solutions and an unrivalled focus on delivering the best customer experience.

  US Signal authorized agent  

US Signal is the premier telecommunications infrastructure provider of network services, IP transport and colocation facilities in the Midwest

  TNCI authorized agent  

Since 1991, TNCI has been a leading national telecommunications provider delivering an unmatched balance of industry experience and stability. Now more than ever, our proven ability to help our Customers navigate a shifting and often times chaotic market presents unique opportunities for our Customers to compete and win. As other telecommunications providers come and go, TNCI continues to prove we are here to stay, in part due to the 30 years of marketing leadership and financial success of our parent company, Trans National Group

  Charter business authorized agent  

At Spectrum Business, we help businesses achieve better results by delivering reliable Internet, Ethernet, phone, and enhancement solutions. We ofer a wide range of products from high-quality broadband services to phone systems and top-tier digital TV and music, that are flexible and can meet the demands of growing businesses. If you're looking for an Internet service provider that's right for your business, see why Spectrum can be a great fit!

  TWTelcom Authorized provider

Level 3 Communications is a premiere global communications provider headquartered in Broomfield, Colorado, that provides communications services to enterprise, government and carrier customers. Anchored by extensive fiber networks on three continents connected by undersea facilities, our global services platform features deep metro assets reaching more than 500 markets in over 60 countries.

We take end-to-end responsibility for monitoring and maintaining the network. We listen to what you need and engineer solutions to your specifications. Our comprehensive portfolio of data, security, video and unified communications solutions provide powerful options to address your most difficult IP challenges.

As an AT&T Solution Provider Champion, Communication Systems International Inc. can offer your company a full range of AT&T's products and services.



AT&T Business Alliance Channel Program Honors Top Solution Providers

Chippewa Falls, WI – January 23, 2015 –CSI, Inc., one of the leading Solution Providers nationwide of AT&T telecommunication services for businesses, recently announced that they… Read more.

CSI, Inc. Announces New Service Telecom Audit Service and Telecom Expense Management

Chippewa Falls, WI – June 25, 2010 –CSI, Inc., the top Solution Provider for Wisconsin of AT&T Telecommunications Services for Businesses, announced today that they are offering two… Read more.

CSI, Inc. recognized by AT&T for outstanding customer satisfaction.

Chippewa Falls, WI - June 25, 2010 -CSI, Inc., one of the leading Solution Providers nationwide of telecommunications services for businesses, recently announced that they were recognized and received… Read more.


Special Offers

AT&T® T1 Managed Internet Service Promotion

Please call or send us an email for a specific quote in your area.

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Special Offers

AT&T Fiber Promotion Hard to Beat!

Depending on the AT&T wire center and competitive situation, they will provide a fully managed 10M x 10M Ethernet Internet access circuit with a Cisco router, a PRI/SIP interface for voice and 6900 minutes of outbound long distance for as low as $587.50.

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