This tutorial will let you install the
G729 Codec on an Asterisk installation in under 5 minutes.
cd /usr/lib/asterisk/modules
·
Codecs
are provided as binary .so files, you can find the archive at http://asterisk.hosting.lv/#bin
·
Take
care of the following when picking up one of the files, they depend on your
hardware/software:
o
Processor
Architecture: Check the kernel type installed on your system (using “uname -a”
)
o
Asterisk
Version: As you can see there is codecs for Asterisk 1.2, 1.4 and also 1.6
o
The
most used ones are the following:
§
http://asterisk.hosting.lv/bin/codec_g729-ast14-gcc4-glibc-pentium.so
§
http://asterisk.hosting.lv/bin/codec_g729-ast14-gcc4-glibc-x86_64-core2.so
[root@Machine
modules]#
wget http://asterisk.hosting.lv/bin/codec_g729-ast14-gcc4-glibc-pentium.so
Notice that we are in the modules
directory
mv codec_g729-ast14-gcc4-glibc-pentium4.so codec_g729.so
/etc/init.d/asterisk restart
Connect to Asterisk
asterisk -r
Then show all of the codec translations
available using the command below, and check g729 at the left, you should see
that it can be translated to many other codecs on the top of the table
Machine*CLI> show translations
Translation times between formats (in milliseconds) for one second of data
Source Format (Rows) Destination Format (Columns)
g723 gsm ulaw alaw g726aal2 adpcm slin lpc10 g729 speex ilbc g726 g722
g723 - - - - - - - - - - - - -
gsm - - 2 2 2 2 1 2 3 - - 2 -
ulaw - 3 - 1 2 2 1 2 3 - - 2 -
alaw - 3 1 - 2 2 1 2 3 - - 2 -
g726aal2 - 3 2 2 - 2 1 2 3 - - 2 -
adpcm - 3 2 2 2 - 1 2 3 - - 2 -
slin - 2 1 1 1 1 - 1 2 - - 1 -
lpc10 - 3 2 2 2 2 1 - 3 - - 2 -
g729 - 3 2 2 2 2 1 2 - - - 2 -
speex - - - - - - - - - - - - -
ilbc - - - - - - - - - - - - -
g726 - 3 2 2 2 2 1 2 3 - - - -
g722 - - - - - - - - - - - - -
Machine*CLI> quit
If you didn’t see the codec translation
as mentioned above then probably you downloaded the wrong codec, please check
again the points mentioned during downloading the codec, you can use the following
commands to help you:
asterisk -V
uname -a