How to install and use Opus codec in Astersik

This document shows you how to install and use Opus codec in Asterisk server:

1. Go to link, http://downloads.digium.com/pub/telephony/codec_opus/

Here select appropriate Asterisk version of your instalation and then server architecture, in my case it was Asterisk 13 with 64 bit

2. Now download file as below,

- cd /usr/src

- wget http://downloads.digium.com/pub/telephony/codec_opus/asterisk-13.0/x86-64/codec_opus-13.0_current-x86_64.tar.gz

3. Extract the downloaded file,

- tar -xvzf codec_opus-13.0_current-x86_64.tar.gz

- cd codec_opus-13.0_1.1.0-x86_64

4. Copy the codec_opus.so file into the Asterisk module directory

- cp codec_opus.so /usr/lib/asterisk/modules/

5. Copy the codec_opus_config-en_US.xml file into the Asterisk external documentation directory

- cp codec_opus_config-en_US.xml /var/lib/asterisk/documentation/thirdparty

6. Goto Asterisk CLI and restart it

- asterisk -rvvvv

- core restart now

- asterisk -rvvvv

- core reload

7. Now check opus codec running or not with below command

ubuntu*CLI> module show like opus

Module Description Use Count Status Support Level

codec_opus.so OPUS Coder/Decoder 0 Running extended

res_format_attr_opus.so Opus Format Attribute Module 1 Running core

If module not loaded, then try to load it manually from Asterisk cli,

- module load codec_opus.so

- module load res_format_attr_opus.so

8. Open file, nano /etc/asterisk/sip.conf and allow opus codec in it as shown below, so SIP soft phones can use that codec.

[general]

callcounter=yes ; enable device states for SIP devices

rtcachefriends=yes

udpbindaddr=0.0.0.0:5060

disallow=all

allow=opus

allow=ulaw

allow=alaw

allow=gsm

After adding, do sip reload from Asterisk cli to take changes into effect

ankit-desktop*CLI> sip reload

Reloading SIP

== Parsing '/etc/asterisk/sip.conf': Found

== Parsing '/etc/asterisk/users.conf': Found

== Using SIP CoS mark 4

== Parsing '/etc/asterisk/sip_notify.conf': Found

ankit-desktop*CLI>