The heart of the call placement process for VoIP is the ___________,defined in RFC 3261,which is an application-level control protocol for setting up, modifying,and terminating real-time sessions between participants over an IP data network.
A)SIP
B)SDP
C)PDP
D)POP

Question

Quizplus · Accepted Answer

The protocol defined in RFC 3261 for setting up, modifying, and terminating real-time sessions between participants over an IP data network is called Session Initiation Protocol (SIP). Therefore, the correct choice is A. SDP (Session Description Protocol) is a protocol used to describe multimedia sessions for the purposes of session announcement, session invitation, and other forms of multimedia session initiation. PDP (Packet Data Protocol) is a network protocol used to transfer data in packet-switched networks. POP (Post Office Protocol) is a protocol used for receiving e-mails from a remote server.

The Heart of the Call Placement Process for VoIP Is