I need some help on how to do an attended transfer using the event socket library protocol. Original call: Channel A <-------------> Channel B(transferring endpoint) (other endpoint of original call) Channel C <-------------> Channel D(transferring endpoint) (endpoint to transfer to) How do I go about disconnecting Channels A and Channel C, and bridging Channel B with Channel D? In the scenario that I have described, I do know the UUIDs for all four of the channels involved. I also need some help on how to conference in a third party into an existing phone call using the event socket library. In this scenario, the call is already connected and I know the UUID of both of the channels of the call. How do I go about conferencing in a third party using the event socket library protocol?