Intelligent VoIP System in Ad-Hoc Network with Embedded Pseudo SIP Server

  • Authors:

  • Lin-Huang Chang;Chun-Hui Sung;Shih-Yi Chiu;Jiun-Jian Liaw

  • Affiliations:

  • Department of Computer and Information Science, National Taichung Univ., Taichung, Taiwan, R.O.C. and Graduate Institute of Networking and Communication Engineering, Chaoyang Univ. of Technology, ...;Graduate Institute of Networking and Communication Engineering, Chaoyang Univ. of Technology, Taichung, Taiwan, R.O.C.;Graduate Institute of Networking and Communication Engineering, Chaoyang Univ. of Technology, Taichung, Taiwan, R.O.C.;Graduate Institute of Networking and Communication Engineering, Chaoyang Univ. of Technology, Taichung, Taiwan, R.O.C.

  • Venue:
  • ATC '08 Proceedings of the 5th international conference on Autonomic and Trusted Computing
  • Year:
  • 2008

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Abstract

Wireless networks and the voice over Internet protocol (VoIP) have recently been widely adapted. VoIP services over Ad-hoc network can be accomplished by middleware embedded in mobile devices. In this study, we have implemented an intelligent VoIP system with embedded pseudo session initia-tion protocol (SIP) server in an Ad-hoc network. We employed the standard SIP protocol and integrated SIP presence to handle SIP signaling and user dis-covery mechanism. The embedded pseudo SIP server, acting as the middleware between transport and application layers, was compatible with common VoIP user agents (UAs) using SIP. Our testbed shows acceptable VoIP quality of ser-vice (QoS) level in transmission delay for both signaling and voice packets.