C.46 Generic test procedure for IMS Re-Registration

34.229-13GPPInternet Protocol (IP) multimedia call control protocol based on Session Initiation Protocol (SIP) and Session Description Protocol (SDP)Part 1: Protocol conformance specificationRelease 16TSUser Equipment (UE) conformance specification

Tools: ARFCN - Frequency Conversion for 5G NR/LTE/UMTS/GSM

The generic test procedure for IMS re-registration

Expected sequence

Step	Direction		Message	Comment
	UE	SS
1	🡪		REGISTER	The SS receives REGISTER from the UE
2	🡨		200 OK	The SS responds with 200 OK.

Use the default message “REGISTER” in annex A.1.1 with condition A2 "Subsequent REGISTER sent over security associations".