National Telesystems Inc

Rated DFW's #1 Telephone Systems Company

DFW’s Experts in Cloud, VoIP and Traditional Telecom Solutions for Business

National Telesystems – DFW’s Leading Telecom Solution Provider

  • Delivering Easy-to-Use Phone Systems at the GUARANTEED Lowest Price
  • Providing EXPERT Sales & Service for Over 30 Years
  • Proud to be the TRUSTED Telecom Supplier for Over 11,000 Metroplex Businesses

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Let National Telesystems Save you HOURS
of Confusion and Stress – Call NTI Today!

Collin/Denton Counties – 972-402-0459

Dallas – 214-545-6309

Fort Worth – 817-288-7640

Servicing Most Major Brands!

VoIP Solutions for Business

Businesses accustomed to the reliability and ease of implementation of traditional telephones in their business may be surprised if they explore this new arena without knowing the precautions to take. National Telesystems has invested heavily in VoIP training and product for years to make sure we are on the leading edge of this technology but not the “bleeding” edge.

Get your VoIP solutions with us today!


Telephone Systems

National Telesystems, Inc. is proud to carry the finest equipment in the industry, including NEC, Norstar, Avaya, Lucent Technologies, Meridian, Vodavi, WIN, Infinite Systems and Starplus – to name just a few.

NTI specializes in premise-based telephone systems, and urges you to make an informed choice about which telephone system is best for your business.

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Network Cabling

Determining the optimal cable for your applications and ensuring its proper installation are integral to the successful infrastructure of your business.

Shortchanging the process or installing cable without consulting a professional telecommunications company can wreak havoc for your business and incur expensive upgrades later.

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After providing and installing your business telephone system, National Telesystems stays with you, offering the services to meet your unique business needs.

As your business needs change, we’re here to support your success, keeping your telecommunications quality consistent with your growth. As a one-stop shop, we’re proud to offer a full-range of services.

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Need a powerful Cloud Telephone System?

We offer Cloud Telephone Solutions with local installation and support for a fraction of the cost of out-of-state hosted carriers!

  • Unlimited Long Distance and Local Calling at no additional charge
  • Easy to use Top Quality Telephones at no additional charge
  • Voicemail for every phoneat no additional charge
  • Hi-Definition Voice Quality at no additional charge
  • Automated Receptionist with Day, Night and Holiday Greetings at no additional charge
  • Call Screening at no additional charge
  • Mobile Phone Integration at no additional charge
  • Phone System Administration Access at no additional charge
  • Local Installation and Support for Quick, Professional Response
  • On Site Training to Get the Most out of your Telephone System

Lower Monthly Prices Than:
*RingCentral * Vonage * Nextive * Shoretel * Ooma * 8x8
Compare and Save!
NTI's Hybrid Cloud Beats the
Competition Every Time!



At National Telesystems, Inc. we pride ourselves on award winning customer service and carrying the finest telephone equipment and phone systems in the industry by partnering up with companies such as NEC, Panasonic, Samsung, Vodavi, WIN, Norstar/Nortel, Meridian, Avaya, AT&T, Lucent Technologies, Prostar, Southwestern Bell, Inter-tel, Nitsuko, Telekol, TiE, Infinite Systems, Nokia, XTS, NetXUSA, Starmail and Toshiba. While we carry all of the major manufacturer brands, the single most important decision to choosing a phone system is the technology you will use to implement your business telephone purchase. As such, we have a highly skilled sales team that can recommend which solution will be fit your small, medium or large size business. We are an award winning telephone systems dealer and service the entire Dallas and Fort Worth Texas metroplex.

Telephone Systems Service  in the following cities:

  • Addison
  • Aledo
  • Allen
  • Alvarado
  • Argyle
  • Arlington
  • Aubrey
  • Azle
  • Balch Springs
  • Bedford
  • Benbrook
  • Burleson
  • Carrollton
  • Cedar Hill
  • Cleburne
  • Colleyville
  • Coppell
  • Corinth
  • Crowley
  • DFW
  • Dallas
  • Decatur
  • Denton
  • Desoto
  • Duncanville
  • Ennis
  • Euless
  • Farmers Branch
  • Flower Mound
  • Forest Hill
  • Forney
  • Fort Worth
  • Frisco
  • Worth
  • Garland
  • Granbury
  • Grand Prairie
  • Grapevine
  • Haltom City
  • Haslet
  • Highland Park
  • Highland Village
  • Hurst
  • Irving
  • Joshua
  • Keller
  • Kennedale
  • Lake Worth
  • Lancaster
  • Las Colinas
  • Lewisville
  • Little Elm
  • Mansfield
  • McKinney
  • Mesquite
  • Mid Cities
  • Midlothian
  • North Dallas
  • North Richland Hills
  • Park Cities
  • Plano
  • Prosper
  • Red Oak
  • Richardson
  • Richland Hills
  • Roanoke
  • Rockwall
  • Rowlett
  • Sachse
  • Seagoville
  • Southlake
  • The Colony
  • Trophy Club
  • University Prak
  • Watauga
  • Waxahachie
  • Weatherford
  • Westlake
  • White Settlement
  • Willow Park
  • Wilmer
  • Wylie