Available Voice Codecs In The Smartware - Patton electronics SmartNode Series Software Configuration Manual

SmartWare Software Configuration Guide

Available voice codecs in the SmartWare

Protocol Codec
ISoIP G.711 A-Law
G.711 u-Law
G.726
G.727
G.723.1
G.729/
G.729a
Netcoder
Transparent
H.323 G.711 A-law
G.711 U-law
G.723.1
G.729/
G.729a
Transparent
Available voice codecs in the SmartWare
E • Used IP ports & available voice codecs in the SmartWare
Net Band- Min. Com-
width per pression
Call ( kbps) Delay (ms)
64
64
16, 24, 32, 40
16, 24, 32
5.3, 6.3
8
6.4, 9.6
64
64
64
6.3
8
64
Used Band-
width per
Call ( kbps,
incl. IP
header)
10 96
10 96
20 32, 40, 48, 56 The G.726 is an ADPCM based
20 32, 40, 48
30 16, 17
10 40
20 22.4, 25.6
10 96
10 96
10 96
30 17
10 40
10 96
Usage
Uncompressed, best voice qual-
ity, European audio-digitizing
Uncompressed, best voice qual-
ity, American audio-digitizing
codec, with small memory foot-
print but fairly high CPU time
requirements.
Embedded ADPCM. See also
G.726
Good voice quality at lowest
bandwidth, like analog phone,
acceptable delay
Best relationship between voice
quality and used bandwidth,
low delay
License free low bandwidth
codec comparable to G.723
Transparent ISDN data, no echo
cancellation
Uncompressed, best voice qual-
ity, European audio-digitizing
Uncompressed, best voice qual-
ity, American audio-digitizing
Good voice quality at lowest
bandwidth, like analog phone,
acceptable delay
Best relationship between voice
quality and used bandwidth,
low delay
Transparent ISDN data, no echo
cancellation
565