Our Partner Grandstream

Contemporary Telephone Group providing the support and training you need thru partnerships

Connecting the World

Grandstream has been connecting the world since 2002 with unified communications and networking solutions that make communicating more impactful than ever before. Our award-winning solutions provide everything needed to build a seamless, easy-to-manage communication platform, offering a one-stop-shop for all networking, unified communications, collaboration, and physical security solutions. Headquartered in Boston, MA, USA, Grandstream solutions are used in over 150 countries and are trusted by global enterprises and small businesses for their quality, reliability, and innovation.

Talk with CTGSystems’ expert technicians. They can come to you for an on-site installation today!