A Session Initiation Protocol (SIP) Load Control Event Package

Document Type Expired Internet-Draft (individual)
Authors Charles Shen  , Henning Schulzrinne  , Arata Koike 
Last updated 2010-04-26
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


This document defines a load control event package for the Session Initiation Protocol (SIP). It allows SIP servers to distribute user load control information to other SIP servers in the network. The load control can throttle calls based on their source or destination domain, telephone number prefix or for a specific user. The mechanism helps to prevent signaling overload and complements feedback-based SIP overload control efforts.


Charles Shen (charles@cs.columbia.edu)
Henning Schulzrinne (schulzrinne@cs.columbia.edu)
Arata Koike (koike.arata@lab.ntt.co.jp)

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)