Dolphin Developer's Guide - Establishing a Client Connection - Examples
In the Client workspace:
"Identify the host and port of the server to connect to"
socketB := Socket port: 2048 address: (InternetAddress ipAddress: #[192 169 0 1]).
"Connect to the server - this call will block until the connection is acknowledged"
So now we have an open connection with socketA at one end and socketB at the other.