By Topic

A study on SIP session timer for wireless VoIP

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$33 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

4 Author(s)
Ai-Chun Pang ; Dept. of Comp. Sci. & Info. Eng., Nat. Taiwan Univ., Taipei, Taiwan ; Chih-Hsiao Liu ; Shu Ping Liu ; Hui-Nien Hung

The session timer mechanism for the session initiation protocol (SIP) has been proposed to track the states of the communicating sessions for proxy servers. Upon the occurrence of the session failure (e.g., radio link disconnection), the proxy server can quickly release the resources allocated for the failed session by using the SIP session timer. Based on the SIP session timer, we propose a dynamic session refreshing approach to adjust the session timer depending on the radio link conditions for wireless VoIP subscribers. The study indicates that with our dynamic session refreshing approach, the session failure can be efficiently detected without a considerable increase of signaling traffic.

Published in:

IEEE Wireless Communications and Networking Conference, 2005  (Volume:4 )

Date of Conference:

13-17 March 2005