Section: 5.5.1.3 Registration procedure for mobility and periodic registration update 5.5.1.3.1 General
Content: This procedure is used by a UE for both mobility and periodic registration update of 5GS services. This procedure, when used for periodic registration update of 5GS services, is performed only in 3GPP access. This procedure used for periodic registration update of 5GS services is controlled in the UE by timer T3512. When timer T3512 expires, the registration procedure for mobility and periodic registration update is started. Start and reset of timer T3512 is described in subclause 10.2. If the MUSIM UE is registered for emergency services and initiates a registration procedure for mobility and periodic registration update, the network shall not indicate the support of: - the NAS signalling connection release; - the paging indication for voice services; - the reject paging request; or - the paging restriction; in the REGISTRATION ACCEPT message.