Winner of “Best Telephone System Provider in Dallas Fort Worth” By Business Consumers’ Choice awards for last Twelve years in a row!

  • Delivering Easy-to-Use Telephone Systems at the GUARANTEED Lowest Price
  • Providing EXPERT Sales & Service for Over 30 Years
  • Proud to be the TRUSTED Telephone System Supplier and Service Company for Over 11,000 Dallas Fort Worth Businesses

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

North Dallas/Collin/Denton Counties – 972-402-0459

Dallas – 214-545-6309

Fort Worth – 817-288-7640

Servicing Most Major Telephone System Brands!

VoIP Telephone System Solutions for Business

National Telesystems, Inc. (NTI) offers a variety of hosted, cloud, and easy-access VoIP telephones and systems to meet any budget. As such, whether you need simply a “cloud” system with hosted phones or a low cost site telephone system with either VoIP or digital telephones, NTI has the solution for your telecom needs!

Get your VoIP solutions with us today!


Business Telephone Systems

National Telesystems, Inc. (NTI) is proud to carry the finest telephone systems in the industry, including NEC, Norstar, Samsung, Avaya, Lucent, Meridian, Vodavi, Toshiba, WIN, Infinite, and Starplus – to name just a few.

As noted experts in both VoIP telephone systems and standard telephone systems, NTI provides options our competitors do not. NTI designs the right system around the customer’s needs. In contrast, other companies with only one or two telecom offerings try to fit a the customer around their system. When a customer has an informed choice, everybody wins, as they can choose which telephone system is best for their business.

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Cloud and VoIP Options

Businesses are used to the reliability and ease of use of standard telephone systems. It is almost an expected “given” when investing in a new telephone system. However, these same businesses are often surprised when they “jump into” VoIP without knowing that reliability and ease of use are no longer a “given’ by any means. It can be a very expensive lesson. In order for our customers to avoid this, NTI took the necessary steps of investing heavily in VoIP training from the start. This move has paid off for our customers many times over. On the other hand, many telephone companies and IT providers attempt VoIP through the “learn as they go” route at the customer’s expense. In contrast, NTI takes the customer’s hand and leads them around the pitfalls of VoIP technology. What a huge difference NTI’s knowledge and experience makes for our customers!

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Broadband Provider

All VoIP telephone systems are totally dependent on the business’ bandwidth. While most companies selecting cloud telephone systems assume bandwidth is part of their hosted cloud pricing, it very rarely is. Poor bandwidth leads to those frustrating “voice lag” and “low volume” conversations – calls that lead callers to hang up. As such, many hosted providers do not bring up the likely need for higher grade (and higher cost) bandwidth until after the binding VoIP service contract is signed. It is truly a case of “Buyer Beware”.

On the other hand, National Telesystems (NTI) will quote and provide the entire service – bandwidth, handoff, and telephone system. NTI will explain the pros and cons of bandwidth options from cable companies’ inexpensive “coax” offerings all the way to high quality fiber. With over 100 broadband providers available, NTI will provide the BEST bandwidth solution for your company’s needs and budget.

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VoIP Telephone Systems

VoIP may be the most misunderstood term in the industry today. Which VoIP? VoIP service, VoIP cloud, VoIP hosted, VoIP hybrid, VoIP premise-based telephone systems? Most telephone system providers offer one or the other, and they never mention the other options.

National Telesystems offers all of these, and we explain the benefits of each to our customers. As recognized VoIP experts, National Telesystems provides reliable, low cost, full featured solutions and makes “misunderstood” VoIP easy for companies throughout the Dallas Fort Worth Metroplex!

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Low Monthly Payments

National Telesystems, Inc. (NTI) offers low monthly payments on both hosted telephone system solutions AND more robust onsite IP telephone systems. As such, NTI’s customers do not have to give up features just to have a monthly payment option – NTI offers “all-in-one” low payment solutions. NTI is one of the few companies that provides our customers options to both choose the best broadband and the best telephones for their particular needs. Options mean lower prices, and NTI always gives our customers more options!

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Network Cabling

Cat 6? Plenum? Cat 5e? PVC? Cat 3? Riser? RJ11? RJ45? Choosing the type of cable and jacks that are best for your business and properly installing them are critical in today’s business world. Wrong cable choices and poor installation can lead to such business killers as data slowdowns and dropping telephone calls. The most expensive computer or telephone will not work well if the correct cable is not selected and installed correctly. Millions of dollars are spent annually on service calls simply to resolve problems originally thought to be in the computer which is found to be caused by poor cabling and sloppy connections. By selecting a company knowledgeable and experienced in both data and telephone cabling and wiring, a business can avoid almost all of these costly pitfalls. National Telesystems is that company for Dallas Fort Worth businesses.

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Need a powerful Cloud Telephone System?

We offer Cloud Telephone System 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 phone at 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 Merge at no additional charge
  • Telephone System Programming 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 telephone systems in the industry. We do this by partnering with industry leaders such as NEC, Panasonic, Samsung, Vodavi, Norstar, Nortel, WIN, Meridian, Avaya, AT&T, Lucent, Prostar, Southwestern Bell, Inter-tel, Nitsuko, TiE, Infinite Systems, XTS, Starmail and Toshiba. While we carry all of the major manufacturer brands, a critical decision in choosing a phone system is which of these company’s technology offering will best fit the customer’s needs. As such, National Telesystems has a highly skilled technical 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 Park
  • Watauga
  • Waxahachie
  • Weatherford
  • Westlake
  • White Settlement
  • Willow Park
  • Wilmer
  • Wylie