Service Identification

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Service Identification

• Jonathan Rosenberg
• Cisco

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Changes since -01

• Separation of Concepts
• Service Identifier (e.g., telephony)
• Declarative Service Identification UA declares
  service ID inside signaling
• Derived Service Identification proxy derives
  service ID from signaling
• Added use case where SIP adds audio to game, when
  game is non-SIP
• URIs as a key architectural principle for solving
  this

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Changes Since -01

• Litmus Test for DWIM vs. DWIS
• If request is sent to network that doesnt
  understand service id, does
• It fail or fallback appropriately
• The wrong thing happen
• Discussion on delayed offer dont do that
  fundamentally incompatible with media based
  service ID

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Question

• Do these changes address concerns raised on list?