The present document presents a review of the USIM, ISIM and the related Toolkit aspects (respectively found in
) features and their mandatory/optional support in the light of actual use or
demand in the field is to be conducted. The technical report documents the justification for the support of features
identified as not being implemented or required (e.g. from SA1 requirements). When a common understanding is
reached about a potential need for a modification of the required support of a feature, it will be listed for further
consideration by CT6. Should any normative work be derived from the content of the study, it will be carried out as part
of a separate work item.