Telephone & Voice Mail Systems

  At ISA Networks, we provide and install new telephone systems ranging from single phones to integrated communication systems spanning the southeast. It’s what we’ve been doing for years, and it’s what we do better than anyone else. Our highly trained team will design, install and maintain your telephone system complete with a host of personalized applications including Voice Processing, Call Center, Video Conferencing, Teleworker, Networking and Presence Management.
   Following your free onsite analysis and the design of the telephone system installation plan that will best suit your needs, ISA will begin installing your custom telephone system. We utilize a wide range of advanced telecommunications products, with a targeted focus on equipment from our long-time partners ESI and Mitel. If you choose to employ an outside equipment vendor, ISA can work with you on an installation-only basis at a highly competitive price.
Our Partners of Choice:


ISA Networks will help you decide which ESI Communications Server and phone structure will serve your needs, then we give you the best price around!  This fully flexible communications platform can support both digital telephony and IP-to-the-desktop in any desired combination. ESI Communications Servers also deliver massive expandability and the greatest functionality ESI has ever offered.

      ISA Networks has been leading the charge in letting the business community know about the outstanding innovations available on the  Award-Winning ESI Series. ESI phone systems have been well recognized by telecommunications industry leaders and awarded multiple kudos for the advances made to its product line of ESI telephone systems and peripherals. The ESI telephone system comes complete with extremely user-friendly ESI telephones.

   ESI (Estech Systems, Inc.) designs, manufactures and markets advanced, highly featured business communications systems. Progressive vision, leading-edge technology, legendary reliability and award-winning products define ESI. Since its inception in 1987, ESI — a privately held corporation based in Plano, Texas — has shipped over 200,000 systems, and has enjoyed remarkable growth and uninterrupted profitability. 

   Is an ESI system the best choice for your business needs?  Let us help! Contact us today! 



  All Mitel systems are top of the line telephony switches suitable in any high-end business environment. Their ability to provide various types of terminals and devices  effortlessly makes them very attractive communications solutions to a rapidly growing business. 

  As an  Mitel authorized partner, ISA Networks designs, supplies, installs and maintains Mitel IP Telephony Solutions. Mitel's long-standing business philosophy of developing solutions that add real value for the user and are easy for both the small business and the enterprise to implement have positioned them as a proven leader in the field of communications. Mitel's solid 30-year history in delivering the industry's best migration path is a critical reason why over 50 percent of their IP Telephony shipments are going to previously non-Mitel customers.

  Mitel's broad portfolio of solutions provide advanced voice, video and data communications platforms, desktop phones and Internet appliances, intuitive applications for customer relationship management and mobility, messaging and multimedia collaboration.

  Mitel systems are the perfect all-in-one solution for a number of key markets including:

  • Hospitality
  • Legal
  • Health Care
  • Education
  • Finance / Banking
  • Retail
  • Engineering firms

  Is Mitel the right solution for you?  We can help! Contact us!

  ISA has been helping businesses create robust, cost-effective integrated communication systems for more than 25 years. For more information on telecom equipment installation, or to schedule a free consultation and onsite business survey, contact us today! You can depend on us for all of your telephone system installation needs!

ISA Networks, Your Full Service Telecommunications Company! 
Call Now For a Free Consultation 1-866-733-3474

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