Registration Event Notification Clause Samples

Registration Event Notification. The Notification event sent by the S-CSCF (or propagated by the SB/SCIM) will have the following headers populated as indicated below. A NOTIFY response is sent immediately in response to the SUBSCRIBE with additional NOTIFY responses being sent when changes to the registration state occur. 3.1.6.2.1 Request-URI The Request-URI will contain the SIP URI of the Application Server or SB/SCIM that issued the SUBSCRIBE (the value taken from the From or P-Asserted-Identity header of the SUBSCRIBE).