Transcoding Card CT200E - User Manual
Version: 1.0
Page 8
Testing
After installing the codec_allotc.so module, you can check the codecs which
you have enabled in the configuration. As shown in following command.
*CLI> core show translation
Translation times between formats (in microseconds) for one second of data
Source Format (Rows) Destination Format (Columns)
g723 gsm ulaw alaw g726aal2 adpcm slin lpc10 g729 speex ilbc g726 g722 slin16
g723
- 4001 2 1 - - 2001 - 1 - - - - -
gsm
3000 - 3000 2999 - - 1999 - 3000 - - - - -
ulaw
1 4001 - 1 - - 2001 - 1 - - - - -
alaw
1 4000 1 - - - 2000 - 1 - - - - -
g726aal2
- - - - - - - - - - - - - -
adpcm
- - - - - - - - - - - - - -
slin
1001 2000 1001 1000 - - - - 1001 - - - - -
lpc10
- - - - - - - - - - - - - -
g729
1 4001 1 1 - - 2001 - - - - - - -
speex
- - - - - - - - - - - - - -
ilbc
- - - - - - - - - - - - - -
g726
- - - - - - - - - - - - - -
g722
- - - - - - - - - - - - - -
slin16
- - - - - - - - - - - - - -
Limitations
Allo.com transcoding card comes with some of limitations, which are listed
below;
1. G711 a/u law codec transcoding will be done for max 50ms of latency.
2. You might be expressing some delay if the other codec has 60ms or
greater latency.
