Answer and Alert Modes Dean Willis, Andrew Allen SIP , IETF 64
Changes • Complete rewrite of security considerations • Minimal mandatory authorization policy included • New header field set:
Header Field Organization • Basic Functions • Answer-Mode (Manual, Auto) • Option: Require • Alert-Mode (Normal, Null) • Privileged Equivalents • Priv Answer-Mode (Manual, Auto) • Priv-Answer-Mode (Normal, Null)
Open Issues • ABNF errors, will fix • Caller-Pref use possibly messed up • Do we need explicit extensibility mechanism: “Manual” / “Auto” / token • Would Alert-Mode be better if replaced by standardized use of alert-info? • Will the detailed security considerations survive review?
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