Voice | Data | Communication
Flexibility For Any Size Workforce
Priced To Fit Any Need
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The leading provider in the Ark-La-Tex and I-10 corridor

Allegiance, LLC has been provider of commercial telecommunications systems and services in Louisiana, East Texas and Southern Arkansas since March of 2002. Based in Shreveport, LA, with an office in Lake Charles , LA, we have continued to grow by embracing new trends in voice and data communication.


Telephone Systems

Whether you need as little as 8 or as many as 1,000 extensions, we can implement the right phone system for your business.

Cabling & Installation

Our technicians will thoroughly install, test, and troubleshoot all cabling and system setups. We guarantee every installation performed.

Internet & Dialtone

Put your business on a reliable network that supports Dedicated Internet Access, VoIP and SIP communication, and desktop fax capability.


From analog to state-of-the-art IP phones, we have a wide variety of communication solutions for any type of business.


VoIP (Voice over Internet Protocol).

There is a new generation of voice technology breaking through standard PBX systems


Mark Haynes, Owner

The key to the growth and success of our company is easy: Do the right thing – every time, every day, all day.

Meet the Rest of the Crew

For Allegiance, LLC to be successful it’s critical for each team member to interact well as a group. There are certain qualities found across the board that make up good teams and we all bring something special to Allegiance.


Our entire phone system was installed by Allegiance, and our company has been very satisfied with the quality of service and support provided.  Their response time is excellent, and their technicians are always courteous and professional.  I would highly recommend Allegiance to anyone considering a phone installation and support service.

Sarah Wilkerson, Comptroller, HR Director, Yokem Toyota

No praise is too high for Allegiance!  From recommendation to installation, they considered every aspect of our needs.  We had a major problem with an unknown user that gained access to our system, and Allegiance’s expertise helped resolve the issue quickly, saving us time, money and worry. They always put their customer first!

Ella Hanna, SGB Architects

First class in my book!  I’ve worked with Allegiance for over 5 years, and they consistently provide superior service, whether I need something done next month or yesterday.   Some of the nicest people you will ever work with.

Dawn Williams, VP of Human Resources, Home Federal Bank

I’ve worked with Mark Haynes and the Allegiance team on a number of large projects in the area. In every instance, the level of professionalism and knowledge exceeded my expectations. It is clear that Allegiance is committed to “excellent service after the sale!” Quality products and service certainly sums up the Allegiance team!

Wes Usie, President, Guardian Alarm Systems


Remote Support
Tips and Video


If you have a project you would like to discuss,
get in touch with us.

We are here to help. All service inquiries are forwarded to our technicians. 318.212.0012 in Shreveport or 337.426.0964 in Lake Charles support@allegiancecom.com

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