Research And Implementation Of IP Telephony HUB

Along with the rapid expanding of Internet world wide, IP telephone has impacted the traditional telecom business fiercely with a tremendous space for developing. So it will bring us great benefits both in economy and society to give IP an in-depth research。The scientific research plan project (No.2002XK61000), Type IP-HUB144-TwinNet IP Telephone HUB, invested by The Information Industry Department (IID) for 1700 thousand Yuan and conducted by Xian Shuangwei Telecom-Tech Co.Ltd is one that pursues the world class telecom technology and follow the ITU-TH.323 V2 standard.The 4-port VoIP Terminal Substitute Equipment Series, phonic transmission through IP, is also named Internet Telephone HUB. The series involved in advanced flushbonding system design, RISC CPU and DSP twin platform and echo control &noise eliminating technology are mainly providing the customers equipped with appropriate IP net (such as government agencies, courts, police, and other groups) with high quality long distance telecom service. In this article, I'd like to describe the research in the forepart of XX-HUB104 Internet Phone HUB and the development of the 1-4-port IP Phone HUB that supports the Industry Standard H.323 V2 (ITU) based on Internet. The HUB has series of function of increment service including call, call transfer, tri-parts communication. At the same time, it also can support loop simulating telephone (or electrograph) and multi-phonic-coding arithmetic.Based on the requirements of the project and relevant agreements, an advanced and applied hardware system and part of the control process of XY-HUB104 Internet Phone HUB has launched with a prospective marketing purpose.