Commonly Used Ports by VoIP Phones
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Question
Which of the following ports is commonly used by VoIP phones?
Answers
Explanations
Click on the arrows to vote for the correct answer
A. B. C. D.D.
The correct answer is D. 5060.
VoIP (Voice over Internet Protocol) is a technology that allows users to make voice calls over IP networks such as the internet or private IP networks. It uses a set of protocols to control the transmission of voice packets between endpoints. One of the most commonly used protocols for VoIP is the Session Initiation Protocol (SIP).
SIP uses port 5060 as the default port for signaling and establishing VoIP calls between endpoints. SIP also uses port 5061 for secure SIP (SIPS) connections, which are encrypted using Transport Layer Security (TLS).
Ports 20, 143, and 445 are not commonly used by VoIP phones. Port 20 is used by the File Transfer Protocol (FTP) for data transfer, port 143 is used by the Internet Message Access Protocol (IMAP) for email retrieval, and port 445 is used by the Server Message Block (SMB) protocol for file and printer sharing.
Therefore, the correct answer is D. 5060.
