Unified Communications Managed API 1.0 SDK
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Use the Unified Communications Managed API version 1.0 SDK to create and deploy SIP-based applications for real-time communications and collaboration. The intended applications can be client-based or server-based and can be written in Microsoft .NET Framework-supported C#. Application developers who must deal with the scalability issues may find the Unified Communications Managed API version 1.0 SDK especially helpful.
Legal Information (Unified Communications Managed API version 1.0 Reference)
Unified Communications Managed API version 1.0 SDK
Development Guide for Unified Communications Managed API version 1.0