Nokia Siemens Networks Columbia University The SIP event notification framework is specified in RFC 3265. The framework restricts usage to notifications of events related to the SIP state. However, there is growing interest in the community for relaxing that constraint and using the SIP event notification framework for reporting changes in state that is not directly related to SIP. For example, it has been suggested a usage of the framework for reporting events related to a vehicle state, files stored in a device, calendar events, and Sieve notifications. This memo discusses the benefits of a mechanism for general event notifications using SIP.