Which three pieces of information can be derived from this sip massage? (Choose Three)
Refer To The Ex 1 (178.92 KiB) Viewed 56 times
A. The call will have no audio
B. Only OOB DTMF will be supported
C. G722 codec will be chosen
D. The B2BUA uses IP 172.16.100.50
E. This is a flow-around configuration
F. The call will last only 30 minutes
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