Home    Sitemap   Blog   Contact
Call 972.484.4900
972.484.4900 (Dallas) 817.529.1700 (Ft. Worth)
972.484.4900 (Dallas) 817.529.1700 (Ft. Worth)

972.484.4900 (Dallas) 817.529.1700 (Ft. Worth)


Business VoIP Phone Systems

Office Telesystems carries the top brand name business phone systems on the market today, including cloud VoIP phone systems, premise based VoIP and digital phone systems, voice and data cabling and infrastructure, PRI, SIP VoIP service, fiber services and much more. We feature these premier … [Read More...]

System Service and Support

Office Telesystems offers service and support for every phone system and all peripheral products we offer. This includes support for our cloud phone systems, premise based VoIP phone systems, digital phone systems, call management software, call recording systems, … [Read More...]


Office Telesystems has serviced clients in many different industries, including: healthcare, assisted living, hotel and motel, insurance companies, advertising marketing firms, real estate industry, auto dealerships, assisted living, legal … [Read More...]


Read Office Telesystems client testimonials about our telephone system installation and service, including new system installations and more. More references are available upon request. “I was impressed with the expertise of the Office Telesystems sales and engineering staff … [Read More...]

Office VoIP Telephone Systems for Business | Dallas Fort Worth

Office Telesystems provides office VoIP and digital phone systems for Dallas, Ft. Worth, regionally, and enterprise business nationally. With company roots going back almost 30 years, we understand that customer service is even more important than the right product. The right product with the latest technology and features available is expected. Service and support are our customers' major concerns. Our goal is to provide every customer prompt, courteous and professional service along with efficient implementation and support of our customers product choice. Nuestros técnicos hablan español!
We offer a full line of business voice technology products for the Dallas Fort Worth area and beyond, including the latest in Voice Over Internet Protocol (VoIP) phone systems in cloud or premise based phone system design and new and refurbished digital phone systems. We also provide voice/data/video cabling and cabling infrastructure, installation, system relocations, system repair, voicemail, call management and call recording solutions, maintenance contracts, service and consulting. VoIP and digital phone system product lines include Samsung, Avaya, NEC (including the NEC SV9100 and brand new NEC SL2100!!), Mitel, cloud phone systems from Netfortris Fonality and more. Office Telesystems continually evaluates our product lines to offer you the very best voice technology solution for your business. Our product lines are carefully chosen to provide the latest technology, reliability, ease of use and return on your investment.
Used and refurbished business phone system brands offered include Avaya/Nortel, AT&T Lucent Partner, Nortel BCM, Avaya/Nortel Option 11, 21, 61, 81, CS1000, VodaviWIN and other major manufacturers. Cloud phone systems (also known as Hosted solutions) from Netfortris/Fonality. Specialized applications include hotel/motel solutions and call center phone systems as well. 
We handle phone systems from 3-30,000 stations or more in single and multi-office implementations and in premise based or cloud phone system design. Nationwide services are available. Our sales staff is trained to evaluate and examine your business operations and find the appropriate equipment and services to maximize productivity and profitability for your business. Maintenance contracts representing a flexible, defined warranty period on equipment are also available. Installations, service and repairs are completed by our trained and experienced staff. Our technicians are certified on the major brands we sell, resolving issues quickly the first time, costing you less for service and installation. Let Office Telesystems handle all of your voice technology needs. Contact us today! 972 484 4900 or see Request a Quote.

Kari's Law Compliance

Is your phone system in compliance with Kari's Law? In the State of Texas, for a multi-line telephone system that provides outbound dialing, Kari's Law requires direct access to 911 service without the user having to first dial an initial number, digit, prefix or other access number or code before dialing 911.
Learn more about 
Kari's Law, a Texas state law. We can help. Contact our office today and get compliant! Compliance with Kari's Law was required by September 1, 2016. 

Office Telesystems is growing! Check out positions available at our Careers page.

Website Builder