Projects / Voip Development Kit (VDK)

Voip Development Kit (VDK)

VoIP Development Kit (VDK) is a cross-platform framework that allows creation of VoIP applications in a very rapid and easy way using VirtualDev technology. Very little knowledge (if any) of VoIP protocols is needed to create your first application.

Operating Systems

Recent releases

  •  06 Apr 2011 12:58

    Release Notes: This is the first tech-preview of the upcoming 2.0 version. This release includes major architectural changes in order to add support for video and multi-flow VoIP calls.

    •  21 Dec 2010 16:19

      Release Notes: A bunch of new codecs, including G722, G728, and G723, are available on all platforms. G729 is now available on all platforms. .NET and Java helper modules are now part of the official distribution and are no longer separate packages. HD Audio is supported. A Noise Suppression API was added. A low-level API was added, allowing you to get call details such as jitter, RTT, and packet loss. Snow Leopard is now supported. A few bugs and usability issues were fixed. The internal architecture was restructured to integrate the long-awaited video feature.

      •  25 Sep 2009 12:32

        Release Notes: This release fixes a bug which would prevent the Mac OS version from compiling properly, fixes a bug which kept the line busy if the provided SIP address was wrong, and adds an API to limit the memory footprint.

        •  02 Sep 2009 14:17

          Release Notes: This release adds AGC and VAD to the free trial API. There are a few bugfixes and some code cleanup.

          •  23 Apr 2009 09:37

            Release Notes: getErrorMessage() was made available. A new RECEIVED_INFO_RESPONSE event was introduced. An incoherency in the registration APIs was fixed. The documentation was updated.


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