Abstract: This invention relates a system, wherein virtual numbers are provided to users through Telecom or computer networks, and one-way or two-way message transmission (texts, images, music or multimedia) are achieved under the situation that message senders do not know the true call numbers of receivers. Virtual numbers are used by receivers permanently for acceptance of messages. According to the setting of users, the message senders are required to input password, thus the service is only offered to specific senders. In addition, the time for message acceptance can be set. The system can integrate accounts and message management for users.

Abstract: A content delivery network system is disclosed. The system comprises a communication network, a first network node for providing services for clients to access network, a second network node for managing hosts for network content providers and a third network node, wherein said third network node sets a default route and a VPN tunnel between the first and second network nodes, and provides a cache server at the bandwidth outlet of the first network node, said cache server stores a information content which has been requested and transmitted. When the client request an information content, the third network node searches the cache server. If the information content is found, the cache server provides said information content to the client directly. If the information content is not found, the cache server sends a request for catching the information content to the second network via the VPN tunnel, and transmits the information content to the client via the default route.

Abstract: This invention relates a system, wherein virtual numbers are provided to users through Telecom or computer networks, and one-way or two-way message transmission (texts, images, music or multimedia) are achieved under the situation that message senders do not know the true call numbers of receivers. Virtual numbers are used by receivers permanently for acceptance of messages. According to the setting of users, the message senders are required to input password, thus the service is only offered to specific senders. In addition, the time for message acceptance can be set. The system can integrate accounts and message management for users.

Abstract: Disclosed is a small amount paying/receiving system for network trading comprises a plurality of pseudo accounts for users to use, each account including a receiving frame and a paying frame for respectively recording the data of the user's depositing, receiving and paying; a money center providing a substantial account corresponding to the respective pseudo accounts to deposit the money for the users; and a message center connecting with the money center.

Abstract: A content delivery network system is disclosed. The system comprises a communication network, a first network node for providing services for clients to access network, a second network node for managing hosts for network content providers and a third network node, wherein said third network node sets a default route and a VPN tunnel between the first and second network nodes, and provides a cache server at the bandwidth outlet of the first network node, said cache server stores a information content which has been requested and transmitted. When the client request an information content, the third network node searches the cache server. If the information content is found, the cache server provides said information content to the client directly. If the information content is not found, the cache server sends a request for catching the information content to the second network via the VPN tunnel, and transmits the information content to the client via the default route.