Which of the following is not a characteristic of SIP?
a. A VoIP signaling technique
b. Uses UDP
c. Responsible for transferring calls
d. All the above
d. All the above
Explanation: SIP defines how voice and video are transported over IP networks, runs in the application layer of the OSI model, and uses the connectionless protocol UDP for packet transport. SIP is responsible for establishing and terminating IP telephony calls and is responsible for transferring the call.
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