How To Set up Asterisk on Debian 9

Asterisk is the most well-liked and extensively adopted open supply framework for constructing communications functions. It’s utilized by people, small companies, massive enterprises and governments worldwide.

Asterisk options embody convention calling, voicemail, music on maintain, name switch, name queuing, name recording, database retailer/retrieve and rather more.

On this tutorial we’ll present you set up Asterisk 15 on Debian 9.

An older model of Asterisk (model 13) is out there within the Debian software program repository and might be put in with apt set up asterisk.

Stipulations

Earlier than persevering with with this tutorial, ensure you are logged in as a person with sudo privileges.

Replace your Debian server and set up the packages required to obtain and construct Asterisk:

sudo apt replace && sudo apt improve
sudo apt set up wget build-essential subversion

Downloading Asterisk

On the time of writing this text, the most recent secure model of Asterisk is model 15.

Change to the /usr/src listing and obtain the Asterisk supply code with the next wget command:

cd /usr/src/
sudo wget http://downloads.asterisk.org/pub/telephony/asterisk/asterisk-15-current.tar.gz

After the obtain is full, use the tar command to extract the archive:

sudo tar zxf asterisk-15-current.tar.gz

Be sure to change to the Asterisk supply listing earlier than persevering with with the subsequent steps:

Putting in Asterisk Dependencies

Run the next script to obtain the MP3 sources that are required to construct the MP3 module and use MP3 recordsdata:

sudo contrib/scripts/get_mp3_source.sh

Subsequent, run the install_prereq script to resolve the entire dependencies in your Debian system:

sudo contrib/scripts/install_prereq set up

The script will set up all needed packages and upon profitable completion, it is going to print the next message:

#############################################
## set up accomplished efficiently
#############################################

Right here you will notice the default ITU-T phone code of 61. However in our case if you’re in North America as I’m it would be best to change it to 1

Putting in Asterisk

Run the configure script which is able to get the Asterisk code able to compile:

Upon profitable completion, you will notice the next output:

The subsequent step is to pick the modules you need to compile and set up. Entry the Menuselect system, by typing:

We’ve already downloaded the MP3 supply recordsdata and now we have to inform Asterisk to construct the MP3 module by deciding on format_mp3:

As soon as you might be completed, press F12 to save lots of and exit, or swap to the Save and Exit button and press Enter.

Begin the compilation course of utilizing the make command:

The compilation could take a while, relying in your system. You possibly can modify the -j flag in accordance the variety of cores your processor.

As soon as the construct course of is accomplished, you can be introduced with the next message:

Set up Asterisk and its modules by typing:

When the set up is accomplished you can be introduced with the next message:

Now that Asterisk is put in, the subsequent step is to put in the pattern configuration recordsdata.

You possibly can set up both the generic configuration recordsdata with pattern documentation by operating:

Or set up the essential PBX configuration recordsdata:

The final step is to put in the Asterisk init script by typing:

It’s also possible to run ldconfig to replace the shared libraries cache:

Creating Asterisk Consumer

By default Asterisk runs as a root person. For safety causes we’ll create a brand new system person and configure Asterisk to run because the newly created person.

Create a brand new system person named asterisk by issuing the next command:

sudo adduser –system –group –home /var/lib/asterisk –no-create-home –gecos “Asterisk PBX” asterisk

To configure Asterisk to run as asterisk person, open the /and so forth/default/asterisk file

sudo nano /and so forth/default/asterisk

And uncomment the next two traces:

/and so forth/default/asterisk

AST_USER=”asterisk”
AST_GROUP=”asterisk”

Add the asterisk person to the dialout and audio teams:

sudo usermod -a -G dialout,audio asterisk

Change the possession of all asterisk recordsdata and directories so the person asterisk can entry these recordsdata:

sudo chown -R asterisk: /var//asterisk /usr/lib/asterisk /and so forth/asterisk
sudo chmod -R 750 /var//asterisk /usr/lib/asterisk /and so forth/asterisk

Beginning Asterisk

Now that we’re all arrange, begin the Asterisk service by typing:

sudo systemctl begin asterisk

To confirm that Asterisk is operating, hook up with the Asterisk command line interface (CLI) by typing:

You’ll see the default Asterisk CLI immediate:

Kind exit or press CTRL+C to exit the Asterisk CLI.

The final step is to allow Asterisk service to begin on boot:

sudo systemctl allow asterisk

Configuring Firewall

By default, SIP makes use of the UDP port 5060, to open the port run:

iptables -A INPUT -p udp -m udp –dport 5060 -j ACCEPT

For those who enabled the Actual Time Protocol (RTP) then you definitely additionally must open the next port vary:

iptables -A INPUT -p udp -m udp –dport 10000:20000 -j ACCEPT

Be happy to regulate the firewall in keeping with your want.

Conclusion

On this information now we have proven you set up the most recent Asterisk model from supply in your Debian system.

You must now examine the Asterisk Documentation and study extra about configure and use Asterisk.

For those who hit an issue or have suggestions, depart a remark under.

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