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Unified Communications Managed API (UCMA) 4.0 is a managed-code platform that developers use to build applications that provide access to and control over Microsoft’s Enhanced Presence information, instant messaging, telephone and video calls, and audio/video conferencing.

• This download was originally released on Oct. 29, 2012.
  
  Unified Communications Managed API (UCMA) 4.0 is a managed-code platform that developers use to build applications that provide access to and control over Microsoft’s Enhanced Presence information, instant messaging, telephone and video calls, and audio/video conferencing. In addition to text conversations, UCMA 4.0 supports speech-technology enabled voice conversations and collaboration. UCMA 4.0 supports the development of server side, middle-tier applications targeting Microsoft Lync 2013 and Microsoft Lync Server 2013. UCMA 4.0 contains a SIP stack, a media stack, and speech engines for both automatic speech recognition (ASR) as well as speech synthesis (TTS).
  
  UCMA 4.0 can be used to add communications capabilities to your business software and processes and can be used to create outbound applications such as alerts or notifications and surveys, inbound speech-technology enabled interactive voice response applications, and automated agents known as query-response bots. UCMA 4.0 API provides access to Lync Server 2013 presence information and can be used to build role agents that use Enhanced Presence information to streamline communications between people.
  
  Advanced UCMA 4.0 scenarios can be used to develop various applications:
  • Automated Call Distributors that perform skill-based routing.
  • Call recording.
  • Conferencing services such as conference access control.
  • Custom client gateways that interface with, for example, other communications networks, Interactive Voice Response platforms, and speech servers using the Microsoft ASR and TTS engines.

Files

Status: Live This download is still available on microsoft.com. The downloads below will come directly from the Microsoft Download Center.

File	Size
UcmaSdkSetup.exe SHA1: 070cdaa7777ac3fdd56119a8cb1a84bd5395c37d	299.42 MB

File sizes and hashes are retrieved from the Wayback Machine’s indexes. They may not match the latest versions of files hosted on Microsoft servers.

• 
  
  Microsoft Visual Studio development system
  • Microsoft Visual Studio 2010 SP1 and above
  
  Notes:
  • The UCMA 4.0 SDK requires the Microsoft .NET Framework 4.5 to be installed.
  • Side-by-side installations of UCMA 4.0 with previous versions is not supported.
  • In order to be able to install the UCMA 4.0 SDK on Windows Server 2008 R2, the Windows Server 2008 R2 feature of Desktop Experience needs to be installed and enabled.
  • In order to be able to install the UCMA 4.0 SDK on Windows Server 2012, the Windows Server 2012 Media Foundation feature needs to be installed.

• UCMA 4.0 SDK Installation
  1. Download UcmaSdkSetup.exe.
  2. Launch UcmaSdkSetup.exe with elevated privileges and follow the instructions to complete the installation.
  Note: By default, UCMA 4.0 SDK is installed in the %Program Files%\Microsoft UCMA 4.0 directory.
  
  UCMA 4.0 SDK is 64-bit only.