====== 1.3 Conventions ======

[[dido:00-sip-ra:01-introduction:start|Return to Introduction]]

The key words "SHALL", "SHALL NOT", "SHOULD", "SHOULD NOT", "MAY", and "NEED NOT" in this document are interpreted as described in [[https://www.iso.org/directives-and-policies.html|Part 2 of the ISO/IEC Directives]] [ISO2]. These [[dido:99_annexes:annex-b-terms-and-definitions:i:iso]] terms are compatible with the same terms in [[https://www.rfc-editor.org/rfc/rfc2119|IETF RFC 2119]] [RFC2119].

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