Radvision's award-winning SIP Toolkit is a powerful and highly versatile set of tools designed to dramatically reduce development efforts of SIP applications. It includes all the components developers require including a large set of quick start sample applications that demonstrate efficient API usage, a GUI test application and detailed documentation.

The SIP Toolkit is an latest IETF standards compliant, high performance SIP implementation and provides multiple API layers for full user control and flexibility.

More information at www.radvision.com.