Dissertation > Excellent graduate degree dissertation topics show

The Research and Development of Embedded VoIP Gateway Based on IXP425

Author: SongYuNa
Tutor: LiuKaiHua
School: Tianjin University
Course: Communication and Information System
Keywords: VoIP SIP oSIP2/eXosip IXP425
CLC: TN916.2
Type: Master's thesis
Year: 2009
Downloads: 31
Quote: 2
Read: Download Dissertation

Abstract


With the rapid development of computer technology, network transmission technology and digital signal processing technology, various real-time multimedia applications based IP packet switch network are widely in use. As a typical IP application, VoIP (Voice over IP) has challenge to PSTN telephone as more powerful functions, lower price and high flexibility. It also accords with the evolution trend of "networks merging" (including telephone network, data network and cable TV network).Signaling is one of the key technologies VoIP depends on. H.323 and SIP are the two presently most widely used signaling protocols in VoIP. H.323 occupies the mainstream of VoIP signaling currently. SIP is signaling protocols designed for an IP telephone, drawing on some Internet standards and protocols ideas, following compatibility and extend in style, supported traditional telephone network business. Interest in SIP increases progressively, because SIP is in accordance with the trend of VoIP and the future networks, with brief structure and close connection with internet. VoIP Gateway is the most important part of VoIP system. It can provide users with low-cost access to VoIP service and various VoIP-based value-added services. This paper analyzed and studied principles of VoIP communication systems, system components, communication protocols (H.323 and SIP), describes the role of SIP network elements and the composition and function the of SIP message. It gave a VoIP gateway program design and implementation process in the embedded Linux based on oSIP protocol stack.IXP425 is high-performance network processor of Intel Corporation in order to meet the embedded network design. Platform based on IXP425 processor provided the Ethernet port, serial port and so on, which Redboot and ARM embedded Linux operating system transplanted on. In application program development used the best open source SIP protocol stack Osip2/eXosip and developed the VoIP gateway user agent client and user agent server.The programme could achieve the system function by the test results.

Related Dissertations

  1. Research of SIP and the Application of SIP in Video Communication,TP393.04
  2. A Kind of Design and Implementation of Embedded VoIP Terminal Based on i.MX51,TN916.2
  3. Design of VoIP Gateway Based on DSP,TN916.2
  4. Embedded video conferencing terminal design and implementation of software modules,TN948.63
  5. New SIP-based voice gateway system design and implementation,TN916.2
  6. SIP Trunk Gateway NAT traversal solution design and implementation,TN915.05
  7. Design and Implementation of Unified Communication Platform Based on SaaS Technology,TP393.09
  8. AnaLysis and Design of the Video Conference System of Qing-Dao Construction Group,TN948.63
  9. Uplink Scheduling Algorithm for VoIP Services Utilizing DTX/CNG Speech Codecs in M-WiMAX System,TN916.2
  10. VoIP Performance Analysis and Research Over Wireless LAN,TN925.93
  11. The Design and Realization of Telemedicine Consultation System Based on SIP-video-conference,TN948.63
  12. Research and Improvement of QoS Technologies in 3GPP LTE System,TN929.5
  13. Design and Implementation of Cross-Platform Voice Communication Terminal Based on SIP,TN916.2
  14. Research of SIP Authentication Based on IMS,TN919.8
  15. Research on Audio and Video-based Bus Scheduling Terminal under the 3G Network,TN929.5
  16. The Research and Implementation of Video Phone System Based on IPTV STB,TN949.28
  17. Research on the Realization of the Communication Function of Voice Testing System Based on SIP,TN912.3
  18. The Core Technology of Softswhich and the Application,TN915.05
  19. The Improvements and Implementation of IVR System Based on H.323,TN916.2
  20. P2P SIP -based instant messaging system for office technology research and design,TP311.52
  21. The Desigin and Implementation of the Load Banlancing System Based on SIP Protocol,TP393.05

CLC: > Industrial Technology > Radio electronics, telecommunications technology > Communicate > Phone > Telephone lines, telephone network
© 2012 www.DissertationTopic.Net  Mobile