This is a development kit for developing VoIP based applications.
Ozeki VoIP SIP .Net SDK for VoIP call system development allows software developers to add voice & video call features to their applications and web pages. If you need to develop applications such as softphones, webphone solutions, SIP based voice and video applications in call centers, CRM systems or IMS solutions, this could be a useful tool. The tool is able to handle many simultaneous calls and facilitates development of auto-dialers, IVR, voice conference solutions, etc. It is compatible with well known PBX systems like the Cisco UCM, Asterisk PBX, 3CX Phone System, etc. The coding environment is .NET compatible. It is also compatible with most of the VoIP services including Skype Connect, VoIPtalk, SureVoIP, etc. This has the needed features for creating voice, video and text conference over VoIP and integrating them into applications and Web pages.
The tool has an extensive list of codecs supported so that audio/video compression is not a problem at all. It allows you to select the codec you wish to use. Among others G.729 codec is supported. Recording of voice conversation could be a useful feature in call center development, where it is mandatory to have conversations recorded in some situations. The developers provide source code examples to make sure developers working on coding are able to work without a hindrance. The tool comes with a large number of examples and a well documented guide. This is a good product and has many useful features. If you have a need, here is a good candidate for trying out.