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

Answer options:

A. converts a delayed offer to an early offer
B. blocks all mid call signaling for specific SIP trunk
C. disables codec re-negotiation in the middle of a call
D. allows pass-through of mid-call signaling on media change
E. provides support for media flow-around in early offer forced call flows
F. provides early offer to delay offer codec change in 200 OK message

BDF