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Chpt07_VoIPInDepth
goes over pcm, and stuff
7
Computer Networking
11th Grade
07/28/2011
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Term
G.711
 Definition
64 Kbps PCM
Term
G.726
 Definition
16,24,32,40 Kbps versions
ADPCM
Term
G.728
 Definition
16 Kbps
CELP
Term
G.729
G.729 A
 Definition
8 Kbps
CELP
Comparable to 32 Kbps ADPCM (G.726)
Term
G.723.1
 Definition
5.3 Kbps - CELP
6.3 Kbps - MP-MLQ
Term
iLBC
 Definition
Internet Low Bitrate Codec
13.33 Kbps - 30ms
15.2 Kbps - 20ms
Quality is higher than G.729A, so also higher than G.726 x 32 Kbps
Used by messenger services, skype, etc
Term
RTP
 Definition
Real-time Transport Protocol. Also has a control part RTCP
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