Cisco 400-051 Exam

An Engineer is configuring a CUBE interoperability with a SIP Service Provider. What are the three different ways Mid -Call Re – Invites function to ensure smooth interoperability of supplementary services? (Choose three.)

  • A. provides early offer to delay offer codec change in 200 OK message
  • B. provides support for media flow ?around in early offer forced call flows
  • C. converts a delayed offer to an early offer
  • D. allows interoperability for video ?related features
  • E. allows pass through of mid- call signalling on media change
  • F. blocks all mid- call signalling for specific SIP trunk
Answer: Option D. E. F.

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