what are difference between "Lync Server 2010 SDK" / "UCMA 3.0 SDK" / and UCC AP...

Detecting which MCUs to connect on an incoming conference...

UCC API for Lync...

sip "100 trying" instead of "180 ringing"...

UCC API to UCMA 3.0 for Lync...

Problems accessing uccapi.dll COM interface C++...