VoIP

Asterisk

Installing Asterisk in Ubuntu

sudo apt-get install asterisk

Standalone installation:

Download the latest ISO from below link & create a VM from it:

http://www.asterisk.org/downloads/asterisknow
https://wiki.asterisk.org/wiki/display/AST/Installing+AsteriskNOW

LAN Installation

This section will allow you to :

Host calls locally
Access mail boxes

We will be editing the following files:

sip.conf
extensions.conf
voicemail.conf

These files are located in:

/etc/asterisk

Making a backup of the 3 files:

sudo mv /etc/asterisk/sip.conf /etc/asterisk/sip.conf.orig
sudo mv /etc/asterisk/extensions.conf /etc/asterisk/extensions.conf.orig
sudo mv /etc/asterisk/voicemail.conf /etc/asterisk/voicemail.conf.orig

sip.conf

sudo nano /etc/asterisk/sip.conf

[general]
context=internal
allowguest=no
allowoverlap=no
bindport=5060
bindaddr=0.0.0.0
srvlookup=no
disallow=all
allow=ulaw
alwaysauthreject=yes
canreinvite=no
nat=yes
session-timers=refuse
localnet=192.168.1.0/255.255.255.0

[7001]
type=friend
host=dynamic
secret=123
context=internal

[7002]
type=friend
host=dynamic
secret=456
context=internal

extensions.conf

sudo nano /etc/asterisk/extensions.conf

[internal]
exten => 7001,1,Answer()
exten => 7001,2,Dial(SIP/7001,60)
exten => 7001,3,Playback(vm-nobodyavail)
exten => 7001,4,VoiceMail(7001@main)
exten => 7001,5,Hangup()

exten => 7002,1,Answer()
exten => 7002,2,Dial(SIP/7002,60)
exten => 7002,3,Playback(vm-nobodyavail)
exten => 7002,4,VoiceMail(7002@main)
exten => 7002,5,Hangup()

exten => 8001,1,VoicemailMain(7001@main)
exten => 8001,2,Hangup()

exten => 8002,1,VoicemailMain(7002@main)
exten => 8002,2,Hangup()

voicemail.conf

sudo nano /etc/asterisk/voicemail.conf

[main]
7001 => 123

7002 => 456

Reloading Asterisk to apply the configuration

sudo asterisk -rx reload

OR

sudo /etc/init.d/asterisk restart

PSTN Calling

Source: howtoforge.com

This section is under construction.

Addons

This section is under construction.

Troubleshooting

Asterisk Console:

sudo asterisk -r

Debug Info:

sudo asterisk -rvvv
sudo asterisk -rvvvvvv