Abstract: Method for receiving and converting transmission signals transmitted according to different protocols, including steps of receiving a transmission signal, judging according to which protocol the transmission signal is transmitted and executing mapping operation corresponding to the transmission signal.

Abstract: A method for allowing to automatically wake up a computer system to receive messages transmitted by a communication apparatus via a communication protocol and then to make the computer system enter into the suspend mode. When the computer system wakes up by the incoming message transmitted via the communication protocol, a Fax/Answering machine function is triggered to receive the Fax/voice message. After the incoming message is completely transmitted, the system suspend function is triggered to make the computer system enter into the suspend mode immediately without waiting for a period of time, therefore, the objective of saving electric power is achieved adequately.

Abstract: A method and system for establishing a communication link between a host computer provided with multiple communication tools and a communication network is characterized in that the at least two communication tools are provided with the host computer and the default communication tool (which is a built-in LAN device) thereof is designated as the communication tool to establish a communication link between the host computer and a corresponding remote server (LAN server) which can provide a network access to the communication network. The LAN server will be polled by a network diagnostic apparatus such as a ping utility to determine whether the LAN server is accessible. If the LAN server is accessible, a communication link can be established between the host computer which serves as a client and the communication network over the link of the client and the LAN server.