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NEC SL1100 and DSX Phone Systems

NEC SL1100 and DSX Phone Systems Request a Quote  


Office Telesystems provides NEC SL1100 and NEC DSX systems sales and service for the Dallas Fort Worth area and regionally.

NEC SL1100

Office Telesystems provides NEC SL1100 phone systems sales and service for the Dallas Fort Worth area, regionally and nationally. Though the NEC SL1100 system is no longer manufactured or supported as of March of 2019, see NEC's new SL2100 hybrid VoIP phone system, which can utilize your current SL1100 desk phones, doorboxes and more!

NEC SL1100 End of Life Announcement 


NEC has announced the end of life and end of support for the NEC SL1100 effective the 31st March 2019. The NEC SL1100 began production in 2012. NEC has made way for the newer NEC SL2100 platform.

Here is the current status of the NEC SL1100 support from NEC:

  1. No new user licenses for System. You cannot add more licenses to the system.
  2. There are no more software updates  
  3. You will still be able to obtain service from Office Telesystems but with limited capacity
  4. We will have limited replacement parts available.

What action do I need to take?

  1. If you are happy with your system but might expand your business after March of 2019 talk to our sales staff about options to upgrade to the new NEC SL2100 server.
  2. You'll need to upgrade to the NEC SL2100 if you are looking to implement SIP trunks for your voice services. SIP licenses are required to support SIP trunks so you will need to upgrade to the NEC SL2100 system. 
  3. If you are happy with your NEC SL1100 and don’t think you will need to expand the system or convert to SIP trunks in the future, then you do not need to take action.

If you have further questions please contact our office and speak to one of our expert sales team.

The NEC SL2100 can be deployed as a VoIP system, digital system, or both! See our Hybrid VoIP system page for more information on this implementation design. VoIP network 2 or more locations as you grow. The NEC SL2100 is ideal for the small business office with 5-20 stations, but supports up to 128 extensions with PRI or SIP trunking available. Features such as voicemail to email integration, call recording, digital or VoIP phones, desktop software paired with an easy to use desk phone and a mobile app make the NEC SL2100 an attractive upgrade option.

NEC Mobile Extension - Be in, when your out!

With Mobile Extension in the NEC SL1100 or new NEC SL2100, you can take calls from your office extension on your cell phone or other mobile device. Mobile Extension provides you with access to system featurs such as call transfer to and from your cell, ability to access outside lines on the system to dial from your cell, its just like being in the office while you're sitting in traffic, at another office, even on the beach! A license is not required for mobile extension utilization with PRI service on the NEC SL1100.

NEC DSX 40, DSX 80, DSX 160

Though these systems are only available as a refurbished system, The NEC DSX 40, DSX 80 and DSX 160 Digital and hybrid VoIP Systems offer you high performance, flexibility and the ability to custom design the system to your specific small business requirements in digital or VoIP environments. Innovation starts with digital and VoIP telephones that feature a sleek, compact design, speakerphones, large displays and a built-in desk stand/wall mount kit with two-position angle adjustment.  Executive versions of digital and VoIP telephones also offer illuminated dial pads and backlit displays and full duplex speakerphone. All NEC DSX key telephones and consoles are available in black or white. Advanced features such as email integration and VoIP handsets are also available.

NEC KIT DSX40 and IntraMail and 3 34B Phones (1091026)NEC DSX 34-Button Backlit Display Telephone with Speakerphone, White

Contact us today for a business phone system from NEC!!

Request a Quote Here

Serving these Dallas Ft. Worth Cities and More!

Office Telesystems serves Addison, Aledo, Allen, Alvarado, Argyle, Aubrey, Arlington, Azle, Balch Springs, Bedford, Benbrook, Burleson, Carrollton, Cedar Hill Cleburne, Colleyville, Coppell, Corinth, Crowley, Dallas, Decatur, Denton, Desoto, Duncanville, Ennis, Euless, Farmers Branch, Flower Mound, Forest Hill, Forney, Fort Worth, Frisco, Granbury, Grand Prairie, Grapevine, Haltom City, Highland Village, Hurst, Irving, Joshua, Keller, Kennedale, Lake Worth, Lancaster, Las Colinas, Lewisville, Little Elm, Mansfield, McKinney, Mid-Cities, Midlothian, North Richland Hills, Plano, Prosper, Red Oak, Richardson, Richland Hills, Roanoke, Rockwall, Rowlett, Sachse, Saginaw, Seagoville, Southlake, The Colony, Trophy Club, University Park, Watauga, Waxahachie, Weatherford, Westlake, White Settlement, Willow Park, Wilmer, Wylie and surrounding areas.  Austin, Houston, San Antonio, Waco, Tyler and more.  Nationwide services available.

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