Objective Systems has recently modified our CSTADLL .Net product so it can process XML CSTA messages as well as BER CSTA messages. Some PBX devices, such as the Unify OpenScape Voice, use XML CSTA messages. The XML CSTA protocol is defined in the ECMA-323 document, which is available here.

Now, we need to test these changes. If you have access to an XML CSTA PBX device, and you would be willing to work with us to test these enhancements to CSTADLL, contact us.