Which of the following secure transport protocols is often used to secure Voice over Internet Protocol (VoIP) communications on a network from end to end?

The correct answer is B. Secure Real-time Transport Protocol (SRTP). Secure Real Time Transport Protocol (SRTP), aka Secure RTP or RTP Protocol, is used in VoIP, video and multimedia applications.

Submitted by carlos_mx· Mar 5, 2026Communication and Network Security

Question

Which of the following secure transport protocols is often used to secure Voice over Internet Protocol (VoIP) communications on a network from end to end?

Options

ASecure File Transfer Protocol (SFTP)
BSecure Real-time Transport Protocol (SRTP)
CGeneric Routing Encapsulation (GRE)
DInternet Protocol Security (IPSec)

How the community answered

(27 responses)

A
7% (2)
B
89% (24)
D
4% (1)

Explanation

Secure Real Time Transport Protocol (SRTP), aka Secure RTP or RTP Protocol, is used in VoIP, video and multimedia applications.

Topics

#VoIP security#SRTP#secure protocols

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