BIGSPEED Video Chat SDK is an easy-to-use set of client and server ActiveX components designed to build virtual private chat networks for small to medium groups, typically up to several hundreds of desktops. Based on mixed client/server and peer-to-peer technology, our SDK provides totally secure text, voice and video messaging through powerful on-the-fly encryption.

Design :

Building a private video chat network
100% Call Completion Rate

A direct connection between two clients is not necessary, instead a permanent virtual circuit is established. The server relays all the packets traveling between clients.


Adjustable video frame quality
Motion detection for better video compression

A lot of badwidth can be saved by not sending any frame which is not quite different than the last one.


Ability to conduct one-to-one or one-to-many voice/video sessions
Silence compression with a voice activity detector
Echo suppression with a double talk detector
Audio data available in raw PCM format for visualization
Detection of input signal overloading
Detection of packet delaying on network slowdown
Capability to mute recording
Capability to mute playback
Instant alert messaging
Instant chat messaging
Direct file transfer
Binary data transfer (array of bytes) between clients
Binary data transfer (array of bytes) between clients and the server
SOCKS proxy support
On-the-fly 128-bit AES encryption with random session keys
Client authentication at protocol level with digital fingerprints or secret keys
Client authentication at application level with username/password
Symmetric encryption mode with shared secret key
Asymmetric encryption mode with 1024-bit Public/Private keys
Elegant event-driven paradigm for easy integration into Windows applications
Responsive user interface while maintaining maximum bandwidth
Simple and well-organized set of properties, methods and events
Multi-threaded, fully self-contained ActiveX control