Dialogic was founded in 1983 in Parsippany, New Jersey by three engineers, Nicholas Zwick and James Shinn, both of whom had worked for Advanced Micro Devices, and Kenneth Burkhardt, formerly with Unisys.

[1] In 1999, at the height of the dot-com era, the company was acquired by Intel for $780 million[2] and was run as the Media & Signaling Division.

Since the formation of the new Dialogic, other competitors in the same industry have been acquired and merged into the company, including NMS Communications[4] and Cantata.

[6][7] In May 2010, Dialogic announced a merger with San Jose, California-based Veraz Networks,[8] a company specializing in softswitch and compression technology.

Its products include media servers, gateways and boards; load balancers, communications applications, softswitches, diameter signaling controllers, session border controllers, signaling stacks and software, fax boards and FoIP software, and bandwidth optimization solutions.