Dialogic was formerly known as Eicon Networks, and took on the name Dialogic in 2006 when it bought the Media & Signalling Division of Intel (this division was known as 'Dialogic' prior to its acquisition by Intel in 1999). The combined Eicon/Intel-Dialogic chose the name Dialogic, as it was still a strong worldwide brandname in the media board space. The Media & Signalling business itself contained acquisitions VTG (media gateways) and Datakinetics (signalling/SS7) that were not part of the original Dialogic from 1999. These are now integrated parts of the new Dialogic.

In 2007, Dialogic bought competitor Cantata, itself a combination of Brooktrout (famous for Fax technology), Excel Switching (operator gateways and service platforms) and Snowshore (IP media server). In early 2008, Dialogic bought Open Media Labs, an expert in video codec technology, which now operates as the Dialogic Media Labs division, supplying advanced video technology to Dialogic. The close of 2008 brought another acquisition, this time NMS (Natural Micro Systems), another competitor in the media server/gateway/board business.