The ______________ is an IETF-defined signalling protocol, widely used for controlling multimedia communication sessions such as voice and video calls over Internet Protocol (IP).
A. Session Initiation Protocol
B. Real-time Transport Protocol
C. SS7
D. VoIP
Answer:A
The ______________ is an IETF-defined signalling protocol, widely used for controlling multimedia communication sessions such as voice and video calls over Internet Protocol (IP).
A. Session Initiation Protocol B. Real-time Transport Protocol C. SS7 D. VoIP