A study on SIP session timer for wireless VoIP
Resource
Wireless Communications and Networking Conference, 2005 IEEE
Journal
Wireless Communications and Networking Conference
Pages
-
Date Issued
2005-03
Date
2005-03
Author(s)
DOI
1525-3511
Abstract
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.
Type
journal article
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