| At present, the realization of voice over the IP network makes the voice communication become more convenience and cheaper. Along with the process of time and the popularization of Internet, the network voice product will certainly come into the common family. The development of the voice communicating product is becoming a hotspot in the field of the network communication. Here, this essay uses a proposal of family gateway, in which the design of the communication voice product is implemented and main guidelines are tested.In the hardware development, the system is disparted into multimodules such as the main controlling module, VoIP module, ADSL module, wireless module and rounter module. Select some similar design proposal, and modify the circuit according to the proposal. Then the circuit diagram and printed circuit of system is accomplished using the software Protel DXP. In the aspect of software, the load of sofeware work is reduced adopting the design of modele, including the modules of application contol, the access of telephone, the access of user and the transplant of protocol stack and so on. In the essay, the work forcuses on the transplant of the BSP and protocol stack over the VxWorks embedding operating system. The design in this way makes the configuration and frame is very clear, thus which will bring convenience to present and continuous develop.The testing environment of the gateway product is builded, and then the main guidelines of product are testing.Therefore, it is the application of multi key technologies in the essay that makes the appearance of high-grade family gateway with multifunction, which will be a pet in this field. |
