www.ExamPointers.com - G.711 Codec 20ms

Last Updated: Friday, 27 February 2009 By: Steve Warner


	VoIP
	QoS
	G.711 20ms Codec
	G.711 30ms Codec
	G.729 20ms Codec
	G.729 30ms Codec

Codec

G.711 20ms	IP	IPsec	HDLC	FRF.12	FRF.12 c/RTP	Ethernet	E+Ipsec	GRE	L2TP
Payload	20ms	20ms	20ms	20ms	20ms	20ms	20ms	20ms	20ms
No. Samples	50	50	50	50	50	50	50	50	50
codec	64000	64000	64000	64000	64000	64000	64000	64000	64000

ethernet						18	18
HDLC			4
FRF.12				7	7			7	7
cRTP					-38
ipsec		48					48
ip	20	20	20	20	20	20	20	20	20
udp	8	8	8	8	8	8	8	8	8
rtp	12	12	12	12	12	12	12	12	12
gre								32
l2tp									40
payload	160	160	160	160	160	160	160	160	160

packetsize	200	248	204	207	169	218	266	239	247
bps	80000	99200	81600	82800	67600	87200	106400	95600	98800
increase	125%	155%	128%	129%	106%	136%	166%	149%	154%

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