Which two statements about the Session Initiation Protocol (SIP) are TRUE?
A. SIP messages are formatted in MIME/64 hex format.
B. SIP messages are encoded in binary.
C. A SIP ACK is used to acknowledge receipt of each message sent during call setup.
D. Every SIP request has a method. E. SIP INVITE method may be used to initiate a call.
Which two statements about the Session Initiation Protocol (SIP) are TRUE?
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Which two statements about the Session Initiation Protocol (SIP) are TRUE?
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