Section: 5.2.2.3.8 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 ]  [6] but initiates no EMM signalling with the network and ignores any paging requests. The UE shall leave substate EMM-DEREGISTERED.eCALL-INACTIVE state only when one of the following events occur: - if the USIM is removed, the UE enters substate EMM-DEREGISTERED.NO-IMSI; - if coverage is lost, the UE enters substate EMM-DEREGISTERED.PLMN-SEARCH; - if the UE is deactivated (e.g. powered off) by the user, the UE enters state EMM-NULL; - if the UE receives a request from upper layers to establish an eCall over IMS, the UE enters state EMM-DEREGISTERED.ATTEMPTING-TO-ATTACH. The UE then uses the relevant EMM and ESM procedures to establish the eCall over IMS at the earliest opportunity; or - 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 EMM-DEREGISTERED.ATTEMPTING-TO-ATTACH. Once the attach procedure is completed, the UE uses the relevant EMM and ESM procedures to establish the non-emergency call.