VoIP Technology & Protocols Flashcards
6 cards from real Phone Service Business practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 VoIP Technology & Protocols flashcards as text
What does VoIP stand for?
Answer: Voice over Internet Protocol
VoIP stands for Voice over Internet Protocol, the technology for delivering voice communications over IP networks.
Which protocol is most commonly used for initiating and terminating VoIP calls?
Answer: SIP
SIP (Session Initiation Protocol) is the most widely used signaling protocol for setting up, managing, and terminating VoIP sessions.
What protocol is used to actually transport the audio data during a VoIP call?
Answer: RTP
RTP (Real-time Transport Protocol) carries the actual voice media packets during an active VoIP call.
What is jitter in the context of VoIP quality?
Answer: Variation in packet arrival times that causes choppy audio
Jitter is the inconsistency in packet arrival times, which causes audio distortion or choppiness in VoIP calls.
Which VoIP codec is known for providing high-definition voice quality and is commonly supported by modern business phones?
Answer: G.722
G.722 is a wideband codec that delivers HD voice quality by using a higher sampling rate than standard narrowband codecs.
What is a SIP trunk used for in business telephony?
Answer: Connecting a business PBX to the public telephone network via the internet
A SIP trunk is a virtual phone line that connects a business PBX to the PSTN (Public Switched Telephone Network) using VoIP.