SIP Event Package for Registrations Configuration Subscription to the SIP Event Package for Registrations is enabled at the SIP interface level. Use the following command sequence to move to sip-interface Configuration Mode. ORACLE# configure terminal ORACLE(configure)# session-router ORACLE(session-router)# sip-interface ORACLE(sip-interface)# Use the subscribe-reg-event parameter to subscribe to the SIP Event Package for Registrations. By default, subscription is disabled. ORACLE(sip-interface)# subscribe-reg-event enabled ORACLE(sip-interface)# Use done, exit, and verify-config to complete enabling the Event Package subscription.