System for establishing multimedia communication interconnection between local unmanned automatic contract machines with a center terminal

A method for communicating, between a local unmanned automatic contract machine and a center terminal having a plurality of relay resources, for achieving a contract between a host enterprise and a client at the local unmanned automatic contract machine, comprising the steps of:

• (a) notifying the center terminal when the client at the local unmanned automatic contract machine desires a contract;
• (b) at the center terminal, selecting one of the relay resources for communication;
• while the contract is completed;
• (c) sending connection-destination information from the center terminal to the local unmanned automatic contract machine to identify the relay resource selected during step (b);
• (d) sending a command, from the local unmanned automatic contract machine to the center terminal, for connecting the client terminal to the relay resource identified by the connection-destination information;
• and
• (e) conducting communication between the local unmanned automatic contract machine and the center terminal while the contract is completed via the relay resource identified by the connection-destination information.