Which of the following does the flexible extension mechanism of the SIP protocol refer to?
A . Add header fields and message types
B . Text protocols are easy to extend
C . Media negotiation uses SDP to facilitate adding new media features
D . Add misalignment check
Answer: A
Latest H11-861_V3.0-ENU Dumps Valid Version with 502 Q&As
Latest And Valid Q&A | Instant Download | Once Fail, Full Refund