Conductor by itself does not offer you any functionality, its purpose is to manage conference bridging resources - Cisco Telepresence Servers or MCU's. Also the VCSGW is not the recommended solution for S4B integration.
Cisco Meeting Server has been Cisco preferred MCU offering since Cisco acquired Acano three years ago. It is a fully functional MCU that can host S4B clients as well as standards based clients/hardware, and also can be setup as a Skype Gateway to allow seamless calls between S4B and hardware or other standard SIP clients. This would be the recommended solution.
https://www.cisco.com/c/en/us/products/conferencing/meeting-server/index.html