Business Phone Systems

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 customers with the best in service and sales, along with 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. At Communications Systems Management, our deep understanding of traditional telecommunication products and leading edge VoIP phone services enables us to use 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

Business Phone Systems

A World Class Partner

UC Solutions

A World Class Selection


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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.

News & Updates

SIP vs Traditional Analog or T-1/ PRI Trunking When a business starts considering an upgrade to their phone system, typically... Read More
Can I Keep My Business Phone Number When I Switch to VoIP? Even though the current business environment places a large emphasis on your... Read More
Call Us Now 1 800 226 3389
Emal Us
Our Company 3816 Gunn Hwy, 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.

Phone: 813-961-9351

    City of Tampa
    University of FLorida