Why CSM?

Established in 1984, CSM is the most experienced VoIP and digital communications business in the southeast USA. CSM was founded in Tampa with a vision to sell and service business phone systems and has constantly been at the forefront of technology, providing our partners with the best in service, sales, and a system that works for them and their business.
With today’s customer economy and global marketplace, companies are re-thinking how they use existing communications resources – such as the Internet, telephone system and data networks. At Communications Systems Management, we understand telecommunication products and services by combining technology to assist in leveraging growth for your company. You know your business and what you want to accomplish. By partnering together, we help to ensure your communications networks are optimized, while delighting your customers and associates.
A lady talking on phone

Our Core Values

With these values, we embrace our mission to bring each client the best service.


CSM South was founded in Tampa in 1984 by a core team of professionals with a vision to provide service excellence and best-of-breed solutions to corporations of every size.

Best Quality

In addition to over 30 years of installing and maintaining voice, data networks we offers best-in-class equipment by Tier 1 manufacturers and cloud based VOIP providers.

Trust Worthy

You know your business and what you want to accomplish. By partnering together, we help to ensure your networks are optimized, while delighting your customers.

About Us

Communications Systems Management, Inc, headquartered in Tampa and with offices in Orlando and Naples as well as Austin, Texas specializes in Cloud VoIP Telephones and phone systems from Mitel (formerly ShoreTel), NEC, and Avaya. We help small, medium (SME) and large (LME) managers and executives design, develop and deploy VoIP and traditional telephone systems that save time, money and streamline operations.

How we can help you

CSM is headquartered in Tampa and specializes in business phone systems and VoIP Phone and UC solutions from Mitel/ ShoreTel, NEC, and Avaya, and hotel phone systems from PhoneSuite as well as legacy solutions such as Nortel, Norstar and Meridian. We help small, medium, and large businesses design and deploy VoIP and traditional digital telephone systems that save money, time and streamline business processes. CSM is devoted to delivering the best solution at a competitive price while empowering our customers to deploy the best VoIP or converged solution for their business. Additionally, we provide phone system sales and service for Texas from our Austin office.
Communications Systems Management
Hotel Phone System
SIP Trunking
NEC Phone Systems
Business Communications
VoIP Solutions
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News & Updates

Mitel VoIP 480 Telephone 18
Mitel NEXT 2021 One of the most informative, innovative, and interesting annual meeting that CSM... Read More
Presidents Day, 2021 CSM South may be a telecom reseller (and a dang good one!), but on this... Read More
Call Us Now 1 800 226 3389
Emal Us info@csmsouth.com
Our Company 3816 Gunn Highway Tampa.

Get In Touch With Us

CSM Service responds to emails and form requests regarding service for telephone systems or quotes on new equipment from M-F 8:00am to 5:00pm. For immediate attention, please call 800.226.3389.

Email: info@csmsouth.com
Phone: 813-961-9351

    City of Tampa
    University of FLorida