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Voice codecs: Difference between revisions

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TelcoBridges products support the following voice codecs. It is important to note that call [[Channels per codec|channel capacity]] available per [[VoIP]] processor module depends on the codec being used.  
TelcoBridges products support the following voice codecs.


=== Supported codecs ===
<br>  
<br>  


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**[http://en.wikipedia.org/wiki/T.38 T.38]
**[http://en.wikipedia.org/wiki/T.38 T.38]


<br>
 


*'''Wireline codecs'''  
*'''Wireline codecs'''  
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**[http://en.wikipedia.org/wiki/Internet_Low_Bit_Rate_Codec iLBC] - Supported packet durations: [13kbps] 30 and 60 msec, [15kpbs] 20 and40 msec
**[http://en.wikipedia.org/wiki/Internet_Low_Bit_Rate_Codec iLBC] - Supported packet durations: [13kbps] 30 and 60 msec, [15kpbs] 20 and40 msec


<br>
 


*'''Wireless codecs''' '''<sup>1</sup>'''  
*'''Wireless codecs''' '''<sup>1</sup>'''  
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**[[G.722.2 (AMR-WB)]] - Supported packet durations: 20,40,60 and80 msec
**[[G.722.2 (AMR-WB)]] - Supported packet durations: 20,40,60 and80 msec


<br>


=== Codec density ===
<br>  
<br>  


['''1'''] May require additional licenses  
==== Mixed mode ====
 
The following density can be achieve when codec mix is dynamically negotiated.
{| cellpadding="5" border="1" class="wikitable"
|-
! width="150" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" rowspan="2" | Type of
VoIP mezzanine
! width="400" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" colspan="5" | Universal codecs
! width="240" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" colspan="3" | Other codecs
! width="320" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" colspan="4" | Wireless codecs'''<sup>1</sup>'''
|-
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | G.711
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | G.723.1
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | G.726
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | G.729ab
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | T.38
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | G.728
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | G.729eg
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | iLBC
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | AMR
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | AMR-WB
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | GSM-FR/GSM-EFR
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | EVRC/QCELP
|-
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | TM-VOIP-1
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | 341
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | 127
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | 169
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | 154
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | 127
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | 58
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | 64
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | 75
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | 91
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | 59
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | 107
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | 95
|-
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | TM-VOIP-2
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | 682
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | 254
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | 338
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | 308
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | 254
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | 116
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | 128
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | 150
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | 182
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | 118
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | 214
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | 190
|-
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | TM-VOIP-3
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | 1023
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | 381
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | 507
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | 462
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | 381
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | 174
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | 192
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | 225
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | 273
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | 177
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | 321
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | 285
|-
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | TM-VOIP-4
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | 1364
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | 508
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | 676
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | 616
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | 508
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | 232
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | 256
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | 300
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | 364
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | 236
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | 428
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | 380
|}
 
 
==== Fixed mode ====
 
The following density can be achieve when codec mix is predefined.
{| cellpadding="5" border="1" class="wikitable"
|-
! width="150" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" rowspan="2" | Type of
VoIP mezzanine
! width="400" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" colspan="5" | Universal codecs
! width="240" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" colspan="3" | Other codecs
! width="320" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" colspan="4" | Wireless codecs'''<sup>1</sup>'''
|-
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | G.711
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | G.723.1
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | G.726
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | G.729ab
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | T.38
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | G.728
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | G.729eg
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | iLBC
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | AMR
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | AMR-WB
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | GSM-FR/GSM-EFR
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | EVRC/QCELP
|-
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | TM-VOIP-1
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | 404
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | 128
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | 200
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | 168
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | 128
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | 66
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | 72
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | 84
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | 102
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | 60
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | 120
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | 96
|-
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | TM-VOIP-2
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | 808
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | 256
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | 400
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | 336
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | 256
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | 132
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | 144
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | 168
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | 204
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | 120
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | 240
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | 192
|-
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | TM-VOIP-3
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | 1212
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | 384
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | 600
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | 504
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | 384
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | 198
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | 216
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | 252
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | 306
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | 180
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | 360
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | 288
|-
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | TM-VOIP-4
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | 1616
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | 512
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | 800
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | 672
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | 512
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | 264
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | 288
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | 336
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | 408
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | 240
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | 480
! width="80" style="background: none repeat scroll 0% 0% rgb(255, 255, 255);" | 384
|}
 
 
 
['''1'''] May require additional licenses


[[Category:Glossary]] [[Category:Tmedia_Features|Voice Codecs]] [[Category:Tdev_Features|Voice Codecs]]
[[Category:Glossary]] [[Category:Tmedia_Features|Voice Codecs]] [[Category:Tdev_Features|Voice Codecs]]

Revision as of 10:27, 22 July 2011

TelcoBridges products support the following voice codecs.

Supported codecs


  • Universal codecs
    • G.711 - Supported packet durations: 20,30,40,50 and 60 msec
    • G.723.1 - Supported packet durations: 30,60 and 90 msec
    • G.726 - Supported packet durations: 20,30,40,50 and 60 msec
    • G.729a/ab - Supported packet durations: 20,30,40,50,60,70 and 80 msec
    • T.38


  • Wireline codecs
    • G.728 - Supported packet durations: 20,30,40,50 and 60 msec
    • G.729eg - Supported packet durations: 20,30,40,50,60,70 and 80 msec
    • iLBC - Supported packet durations: [13kbps] 30 and 60 msec, [15kpbs] 20 and40 msec


  • Wireless codecs 1
    • AMR - Supported packet durations: 20,40,60 and 80 msec
    • GSM-FR - Supported packet durations: 20 and 30 msec
    • GSM-EFR - Supported packet durations: 20,40 and 60 msec
    • EVRC - Supported packet durations: 20,40 and 60 msec
    • QCELP - Supported packet durations: 20,40 and 60 msec
    • G.722.2 (AMR-WB) - Supported packet durations: 20,40,60 and80 msec


Codec density


Mixed mode

The following density can be achieve when codec mix is dynamically negotiated.

Type of

VoIP mezzanine

Universal codecs Other codecs Wireless codecs1
G.711 G.723.1 G.726 G.729ab T.38 G.728 G.729eg iLBC AMR AMR-WB GSM-FR/GSM-EFR EVRC/QCELP
TM-VOIP-1 341 127 169 154 127 58 64 75 91 59 107 95
TM-VOIP-2 682 254 338 308 254 116 128 150 182 118 214 190
TM-VOIP-3 1023 381 507 462 381 174 192 225 273 177 321 285
TM-VOIP-4 1364 508 676 616 508 232 256 300 364 236 428 380


Fixed mode

The following density can be achieve when codec mix is predefined.

Type of

VoIP mezzanine

Universal codecs Other codecs Wireless codecs1
G.711 G.723.1 G.726 G.729ab T.38 G.728 G.729eg iLBC AMR AMR-WB GSM-FR/GSM-EFR EVRC/QCELP
TM-VOIP-1 404 128 200 168 128 66 72 84 102 60 120 96
TM-VOIP-2 808 256 400 336 256 132 144 168 204 120 240 192
TM-VOIP-3 1212 384 600 504 384 198 216 252 306 180 360 288
TM-VOIP-4 1616 512 800 672 512 264 288 336 408 240 480 384


[1] May require additional licenses

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