Business Phone Products

Suffolk and Nassau Counties Telecom Company

If you are looking for a way to provide an integrated, top-notch phone system for your company, then look no further than TDLI Communications Corp. Our phone systems have proven themselves to be indispensable solutions for countless businesses throughout our area. One such example is our NEC Display Solutions, which work to bring your content to life!


Panasonic offers a Compact Hybrid Communication Platform that protects your investment by incorporating digital phone system features with an easy to install IP protocol. Additional benefits include the use of remote wireless extensions, IP phones, SIP trunks, access voice mail messages via email, cell phone integration and built-in applications to support call centers and multiple locations. It is a cost-effective legacy and IP communication system for small to mid-sized businesses with up to 250 users in a single site that can be flexibly configured and expanded.

Panasonic Digital Phone System in Suffolk & Nassau Counties Panasonic IP Phone Systems in Suffolk County

Panasonic Business Phone Installation in Suffolk & Nassau Counties Panasonic Digital Phone Systems


NEC offers a powerful communication solution with a small price tag. NEC systems have intuitive features and time-saving applications that empower your team and help you become more productive. Some features include mobile extension capability so you can carry your office number with you on the road, voicemail to email, system cordless phones, call recording, desktop applications, softphones and much more.

NEC Phone Systems for Nassau & Suffolk County NEC Business Phone Installation in Suffolk & Nassau Countiesl

Hosted Systems and SIP Trunking

TDLI Communications offers hosted IP phone systems as well as SIP trunking that can save your business money every month. With a hosted system companies can get all the features (and more) of a large PBX system without the capital outlay. We offer full-featured cloud-based phone systems with over 40 advanced features such as find me/follow me, virtual receptionist, simultaneous ring and fax over IP. With SIP trunks you get unlimited calling to over 20 international destinations. SIP trunks easily integrate into existing phone systems, allow for direct inward dial numbers and start at just $19.95 per month.

Polycom VX Phone System in Suffolk & Nassau Counties

Avaya Partner

TDLI Communications still offers equipment, repairs, and servicing of the Avaya Partner system. With over a million of the partner systems sold, there are still many of them still going strong in businesses throughout Nassau and Suffolk as well as New York City. We stock replacement parts and can repair/refurbish your older equipment to keep you up and running until you are ready for an upgrade.

Avaya Partner System in Nassau & Suffolk County

TDLI Communications Corp. offers so much more than just phone systems and reliable, inexpensive dial tone service. We offer accessories such as wired and wireless headsets, wired and wireless conference phones, custom message on hold systems, paging systems, call recording systems and software applications that help your business run more smoothly.

Polycom Conference Call System in Suffolk & Nassau Counties Plantronics CS540 Wireless Headset in Suffolk & Nassau Counties

Why Choose Us?

  • 0% Financing
  • Free Estimates
  • Certified Optimum Rep
  • 24 Hour Emergency Service
  • Over 20 Years of Experience!
  • Full Repair & Refurbish On Site
  • Suffolk County Low Voltage Licensed & Insured
  • Support for Older Systems As Well As Latest Technology