Section: 5.2.2.3.7 eCALL-INACTIVE
Content: The UE camps on a suitable cell or an acceptable cell in a PLMN selected as specified in 3GPP TS 23.122[ Non-Access-Stratum (NAS) functions related to Mobile Station (MS) in idle mode ]  [5] but initiates no 5GMM signalling with the network and ignores any paging requests. The UE shall leave substate 5GMM-DEREGISTERED.eCALL-INACTIVE state only when one of the following events occur: a) if the USIM is removed, the UE enters substate 5GMM-DEREGISTERED.NO-SUPI; b) if coverage is lost, the UE enters substate 5GMM-DEREGISTERED.PLMN-SEARCH; c) if the UE is deactivated (e.g. powered off) by the user, the UE enters state 5GMM-NULL; d) if the UE receives a request from upper layers to establish an eCall over IMS, the UE enters state 5GMM-DEREGISTERED.ATTEMPTING-REGISTRATION. The UE then uses the relevant 5GMM and 5GSM procedures to establish the eCall over IMS at the earliest opportunity; or e) if the UE receives a request from upper layers to establish a call to an HPLMN designated non-emergency MSISDN or URI for test or terminal reconfiguration service, the UE enters state 5GMM-DEREGISTERED.ATTEMPTING-REGISTRATION. Once the registration procedure is completed, the UE uses the relevant 5GMM and 5GSM procedures to establish the non-emergency call.