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Voice-over-IP (VoIP) is based on the UDP protocol. This is because UDP has a lower overhead than TCP. What is the effective percentage gain in throughput (of any given payload) using UDP vs TCP?
UDP has an 8 octet header, and TCP usually has a 20 octet header. Both require an IP header and an RTP header, which together add 32 octets.
The percentage difference between UDP and TCP depends on the size of the payload. A 20 octet payload is typical (G.729 with a sample sent every 20ms).
But, that’s not the whole story. TCP takes longer to process at the end points because they check whether data is received in the correct order and whether retransmissions are required. This is an unnecessary overhead, because if TCP detects a transmission problem, there is no point in retransmitting. Voice is real time, so if samples do not arrive, they are considered lost and the codec software just “gets on with life” 🙂
hi,
I m satisfied with the answer given by froum.that is the answaer i am looking for.
Thanks a lot to everyone as i get,what i want.
Voice-over-IP (VoIP) is based on the UDP protocol. This is because UDP has a lower overhead than TCP. What is the effective percentage gain in throughput (of any given payload) using UDP vs TCP?
Didn’t I just answer that one?
Voice-over-IP (VoIP) is based on the UDP protocol. This is because UDP has a lower overhead than TCP. What is the effective percentage gain in throughput (of any given payload) using UDP vs TCP?
7. Voice-over-IP (VoIP) is based on the UDP protocol. This is because UDP has a lower overhead than TCP. What is the effective percentage gain in throughput (of any given payload) using UDP vs TCP?
I see. So, I wasted my time answering the latest exam question – question 7. And from the look of the confused responses, it seems that no one understood it anyway. Let’s hope none of you ever make it into the industry.
7. Voice-over-IP (VoIP) is based on the UDP protocol. This is because UDP has a lower overhead than TCP. What is the effective percentage gain in throughput (of any given payload) using UDP vs TCP?
immediately withing 5 minutes i want this answer
My teenager daughter will not lower the volume on the stereo.
I want the VOIP comunity to give mea step by step procedure to make this trouble go away.
Right NOW!!!!!!!
I guess this question is as ridicule as some others…….
Can the overhead due to retransmission in TCP be quantised? i mean, is there any probability and stats.. like expected number of lost packets..
Voice-over-IP (VoIP) is based on the UDP protocol. This is because UDP has a lower overhead than TCP. What is the effective percentage gain in throughput (of any given payload) using UDP vs TCP?
please answer within 5 minutes
Voice-over-IP (VoIP) is based on the UDP protocol. This is because UDP has a lower overhead than TCP. What is the effective percentage gain in throughput (of any given payload) using UDP vs TCP?
Voice-over-IP (VoIP) is based on the UDP protocol. This is because UDP has a lower overhead than TCP. What is the effective percentage gain in throughput (of any given payload) using UDP vs TCP?
tom r u there
