VOIP in a Nutshell

SIP Protocol Stack

VOIP Codec Comparison

Codec	Data Rate	Typical Datagram Size	Packetization Delay
G.711u	64.0 kbps	20 ms	1.0 ms
G.711a	64.0 kbps	20 ms	1.0 ms
G.726-32	32.0 kbps	20 ms	1.0 ms
G.729	8.0 kbps	20 ms	25 ms
G.723.1	6.3 kbps	30 ms	67.5 ms

Author: Chathura Ariyadasa

A highly talented IT professional with extensive experience and capabilities in performing a variety of IT Security, Computer Networking and IT Help Desk duties and responsibilities in the IT Department. View all posts by Chathura Ariyadasa

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