Which of the following is a type of common channel signaling?
A) single frequency signaling (SF)
B) multifrequency signaling (MF)
C) ear-to-mouth signaling (E&M)
D) all of the above
E) none of the above

Question

Quizplus · Accepted Answer

Common channel signaling refers to a separate channel used for carrying control information, distinct from the voice channels. The options listed (SF, MF, E&M) are types of in-band signaling, not common channel signaling.

Which of the Following Is a Type of Common Channel