Is there a way to access Microsoft OCS Directory/Presence information using a web service?

We are working on a client app that should search and download directory information from Microsoft OCS server (OCS old as well as Lync). Does OCS provide web services type api?开发者_如何学Python From what I understand, the client needs to do sip handshake before it can do directory related queries. Having dependency on sip stack is not desirable. So I am wondering if there is a way (like SOAP web service or something like that) to do it. The client is a C++ client with access to gSoap or curl type library running on Linux platform.

Thanks for your help.

No, there is no web service out of the box that gives you what you need.

I thin your best bet would be to build a UCMA application that would sit on an application server inside your OCS/Lync infrastructure. You could then build a web service to access this. For OCS 2007, you'd need to use UCMA 1.0. For OCS 2007 R2, UCMA 2.0 and for Lync, UCMA 3.0