The Design And Implementation Of Unified Messaging System

As the rapid development of communications technology and the Internet, means ofcommunication between people has become increasingly diverse. Telephone, fax, SMS,Email, Voice-Mail, video voice conferencing, IM software, these communications coverpeople’s daily life and work, however, due to communication interface is not unity, toomuch communication can lead to information redundancy I and productivity, users need aplatform to integrate existing means of communication, allowing users to communicate indifferent ways, different networks, different equipment, communication environment,regardless of any time, any place, can have a unified interface, access to the services theyneed and function, so the concept came into being unified messaging, unified messaging isthe communication industry, IT industry, the Internet industry in three segments of naturaldevelopment, gradual integration of the results.Unified Messaging system uses the ACE framework to complete the basic networkcommunication, use the ACE reactor to complete multi-monitor event messages, use theACE object-oriented server-side packing threads in all concurrent threads to ensure thesystem’s high efficiency and good quality software as ACE library cross-platform, but alsomakes the system better portability. SMTP and POP3mail server implementations use thestate pattern to complete the main structure, and according to e-mail protocol and unifiedmessaging requirements into the design of the state machine diagram, which completedthe UMS Unified Messaging server-side design and implementation of core modules,including its mail service module and the Message Center module to achieve. Mail servicemodules including SMTP Server and POP3Server, its internal modules of theimplementation process were discussed in depth, focusing on the inside of the moduleinitialization process, the timing relationship between the message passing protocol, etc.;mail service module focuses on a unified conversion between the message handlingmechanism, the data structure design of multimedia messages such as core issues.Unified Messaging System with V-type development process, follow the IPD-CMMdevelopment standards, unified communications solutions are an integral part of, abusiness-rich, application is simple, easy to deploy, flexible networking, security and reliability. Unified Messaging applications in the process of development of intelligentcommunication play a very important role in communications, IT, Internet, integration ofthe three major industry milestones in the development.