一种基于AR1688的以太网VoIP语音网关的设计

In this paper the author gives a design of VoIP Ethernet voice gateway based on the SOC of AR1688. First is the introduction of total electronic circuit contriving. After that brief descriptions of micro control unit chip AR1688 and the core chip used in subscriber line interface circuit (SLIC) on which periphery circuit is designed are given. Then the article deals with the software design flow and introduces the implementation of SIP protocol stack. This VoIP gateway will make it possible for companies and individuals to make voice communication economically using Internet. The design is also an advanced VoIP solution due to its low cost and feature of stability.