10/22/2018 ONVIF Profile G involves multiple protocols. ONVIF Profile G involves multiple protocols thought there is only one specification document for Profile G For recording: recording search specification and its corresponding WSDL, recording control and its corresponding WSDL. For replay: replay control specification and its corresponding WSDL. The section "6 Playback" of streaming specification is also highly relevant. A camera must have at least one RecordingJob to start recording.