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The Telecommunication System Division (TSD) is part of Toshiba America Information Systems Inc/ (TAIS). Headquartered in Irvine, CA, TAIS is comprised of four business unites: Digital Products Division, Imaging Systems Division, Storage Device Division, and Telecommunication Systems Division. Together, these divisions provide multiple products and solutions, including industry leading portable computers, projectors, imaging products for the security, medical and manufacturing markets, storage products for automotive, computer and consumer electronics applications, and VoIP & digital business communication equipment and associated voice applications.

Toshiba TSD offers a complete line of IP and digital business communication solutions developed to address the needs of today's small to medium-sized businesses and large enterprises with multiple locations. Toshiba is committed to delivering solutions that empower its customers to effectively communicate with their customers, vendors and each other.