COMPLETE VOICE AND DATA NETWORKING WITH A SINGLE VENDOR SOLUTION” Founded in 1981, Southeastern Telecommunication Services is a full service voice provider offering VoIP and traditional telephony to move your organization into the VoIP arena. Southeastern is prepared with the latest business communication solutions and technical experience to enhance your organizations communication systems. At Southeastern, we recognize that the communication needs of every organization are different. Our goal is to carefully plan, design and develop a communication solution at a customized pace that will work with your business’s needs, while maximizing your strengths.