How to Install Asterisk 11 on Ubuntu 12.04 LTS

For this install I am using Asterisk 11.0.1 and will be compiling from source on Ubuntu 12.04.1.

Before you begin the install process you will want to be sure that your server OS is up to date. When the update completes the server will reboot.

 apt-get update && apt-get upgrade -y && reboot

Next you will want to resolve basic dependencies. (More information on Asterisk dependencies.)

apt-get install build-essential wget libssl-dev libncurses5-dev libnewt-dev  libxml2-dev linux-headers-$(uname -r) libsqlite3-dev uuid-dev

Download the source tarballs. These commands will get the current version of DAHDI, libpri and Asterisk.

cd /usr/src/
wget http://downloads.asterisk.org/pub/telephony/dahdi-linux-complete/dahdi-linux-complete-current.tar.gz
wget http://downloads.asterisk.org/pub/telephony/libpri/libpri-1.4-current.tar.gz
wget http://downloads.asterisk.org/pub/telephony/asterisk/asterisk-11-current.tar.gz

Extract the files from the tarballs

tar zxvf dahdi-linux-complete*
tar zxvf libpri*
tar zxvf asterisk*

Install DAHDI

cd /usr/src/dahdi-linux-complete*
make && make install && make config

Install libpri

NOTE: libpri 1.4.13 won’t compile on Ubuntu 12.04 due to a bug (https://issues.asterisk.org/jira/browse/PRI-145). See the video forhow to apply a patch to fix the bug. (Edit: libpri 1.4.14 has been released with this bug fix included. If you are a using 1.4.14 or later you should not encounter this bug.)

cd /usr/src/libpri*
make && make install

Install Asterisk. Select your options when the menuselect command runs. Then select “Save & Exit” and the install will continue.

cd /usr/src/asterisk*
./configure && make menuselect && make && make install && make config && make samples

Start DAHDI

/etc/init.d/dahdi start

Start Asterisk and connect to the CLI

/etc/init.d/asterisk start
asterisk -rvvv

Verify your installation by checking for the DAHDI and libpri versions on the Asterisk CLI

*CLI> dahdi show version
DAHDI Version: 2.6.1 Echo Canceller: HWEC
*CLI> pri show version
libpri version: 1.4.13

Congratulations! You now have Asterisk 11 running on Ubuntu 12.04.