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
