The world's public switched telephone networks,both wireline and mobile,communicate with each other by means of a signaling protocol known as __________________.
A)private branch exchange (PBX)
B)Signaling System 7
C)public switched telephone network (PSTN)
D)public data network (PDN)

Question

Quizplus · Accepted Answer

The signaling protocol used by the public switched telephone networks is Signaling System 7 (SS7). PBX refers to a private telephone system within an organization, while PSTN refers to the entire network of public telephone lines and exchanges. PDN refers to a network used for transmitting data, not specifically for telephone communication.

The World's Public Switched Telephone Networks,both Wireline and Mobile,communicate with Each