Design And Development Of Real-time Voice Communication System Using WLAN Based On Android

With the deep development of mobile Internet and widely popular,using network communication has become a new trend in people's daily communication.Using WiFi to call is a subversion of traditional telecom service mode,and it develops the existing network resources deeply.However,in the current Android mobile application market,WiFi voice applications have many restrictions,such as complex and functions of redundant,taking up large memory,not free and so on.This paper aims to explore,design and implement a real-time voice communication system using WiFi to provide users with free and stable voice communications services.The project include three functional modules:real-time call,contacts management,WiFi management.At the same time,it is a research,in order to explore the lightweight and stability requirements of the more than the power of the wireless LAN voice communication system High case,whether full functions can be achieved or not.Firstly,this paper describes the background and significance of this project,and then introduces the key technologies used in the project,including TCP/IP network protocol,MVP framework,IPMSG protocol,ARdM-NB codec algorithm,JNI technology and so on.And then describes the business requirements of the system by using the use case diagram and the use case,and conceive the overall design of the system from the functional architecture design,the technical scheme design,the outline design,the database design and the detailed design.The implementation logic of each function module is displayed in flow chart,sequence diagram and class design diagram and implementation screenshot description.After that,this paper briefly describes the functional testing and nonfunctioning test of the system.including real-time testing of voice quality and system compatibility test and other aspects of the test process and test results,the system quality of a reasonable assessment.I am the only person in charge of the project to complete the design and development of all modules.The main work includes how to carry out technical research on the project,collecting and analyzing the project related requriements,designing a complete system function architecture,and analyze non-functional requriements.And complete the overall system architecture design,interface summary design,the detailed design of the functional modules,and system implementation.After the system to test and defective results for the test results,to participate in follow-up related improvements.Now the project is in integrated testing.If it passes the test,it will be embed in a well-known Android manufacturer built-in system,and be available to the majority of Android users free of charge.