NAS-1Step is a visual application that allows you to create, view, and edit messages that conform to a particular version of 3GPP Technical Specification 24.501 (NAS). NAS-1Step can handle a collection of encoded NAS messages stored in files organized into one or more folders or folder subtrees. Each encoded message file must contain the bytes of one NAS message. You can create any number of projects containing references to any number of encoded message files. After creating one or more such projects, you can open them and work with their contents. You can open several projects and edit multiple NAS messages that belong to different projects at the same time.
This documentation applies to NAS-1Step for 5G v7.1.0 for 3GPP Release 15.4.0.
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Every distributed copy of NAS-1Step for 5G is associated with a specific license and related unique license number. That license determines, among other things, what functions of NAS-1Step for 5G are available to you.