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SIP INFO

SIP INFO. Cast of Thousands Fall Guy: Eric Burger. What is Your View of INFO?. What is Your View of INFO?. A Zombie that will not go away?. An Angel you cannot live without?. Photobucket duduwalker. Photobucket kiyokouchiha. Drafts. draft-kaplan-sip-info-events

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SIP INFO

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  1. SIP INFO Cast of Thousands Fall Guy: Eric Burger SIP INFO - IETF 72 Dublin Ireland

  2. What is Your View of INFO? SIP INFO - IETF 72 Dublin Ireland

  3. What is Your View of INFO? A Zombie that will not go away? An Angel you cannot live without? Photobucket duduwalker Photobucket kiyokouchiha SIP INFO - IETF 72 Dublin Ireland

  4. Drafts • draft-kaplan-sip-info-events • draft-kaplan-sip-info-use-cases • draft-rosenberg-sip-info-litmus • draft-rosenberg-sip-tote • draft-burger-sip-info • draft-burger-sip-user SIP INFO - IETF 72 Dublin Ireland

  5. Issues • Is there a problem at all? • We all see the potential for trouble • Do we see trouble in the wild? • Is there trouble other than for DTMF? • Assuming there is a problem... • What should we do? SIP INFO - IETF 72 Dublin Ireland

  6. User-User Information Exchange • Clearly a need for UUI related to the SIP dialog • Done way too much in the wild to ignore • Just saying “no” does not work • Issue 1: Do we need some UUI mechanism related to the SIP dialog? SIP INFO - IETF 72 Dublin Ireland

  7. INFO in the Wild • Registry / Catalog of extant INFO usage • Capture what is out there • Analyze trends • Avoid collisions • Already done in reality (draft-burger-sip-info, draft-kaplan-sip-info-use-cases) • Issue 2: Worth spending more effort on cataloging extant INFO usage? • Issue 3: If so, worth establishing IANA registry, document in an Informational RFC, other? SIP INFO - IETF 72 Dublin Ireland

  8. INFO as a Method • Any “repair” of INFO will NOT be backwards compatible • Issue 4: do we care? • Just ignore old usages? • Means “Good INFO” UAS will, by design, barf on “Bad INFO” usage • Since “Good INFO” UAS will be new, and they probably want to interoperate with old, will not barf on “Bad INFO.” ∴ “Bad INFO” with us forever and cast in stone; might as well give up and stick with “Bad INFO” SIP INFO - IETF 72 Dublin Ireland

  9. New Mechanisms • Lots of options • New INFO that looks like SUBSCRIBE • New method that • Is negotiable • Is unambiguous • Carries arbitrary payloads • Issue 5: Do we need a new mechanism? SIP INFO - IETF 72 Dublin Ireland

  10. Issue 6: Pick a Mechanism • #1: Method, or mechanism to open pipe, a’la speechsc, mediactrl, tote? • #2: Option tags and Requre? • #3: Something else? SIP INFO - IETF 72 Dublin Ireland

  11. Anything Else? SIP INFO - IETF 72 Dublin Ireland

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