1. Asterisk’s Installation Requirements Kernel source bison bison-devel ncurses ncurses-devel zlib zlib-devel openssl openssl-devel gnutls-devel gcc gcc-c++

2. Installation Check the required packages: rpm -q kernel-devel rpm -q bison rpm -q bison-devel rpm -q ncurses rpm -q ncurses-devel rpm -q zlib rpm -q zlib-devel rpm -q openssl rpm -q openssl-devel rpm -q gnutls-devel rpm -q gcc rpm -q gcc-c++ Install the packages if they are not installed: yum install kernel-devel yum install bison yum install bison-devel yum install ncurses yum install ncurses-devel yum install zlib yum install zlib-devel yum install openssl yum install openssl-devel yum install gnutls-devel yum install gcc yum install gcc-c++

3. Installation Voice over IP (VoIP) Scenarios Pure VoIP System Connecting Asterisk to PSTN

4. A Pure VoIP System

5. Installing a Pure VoIP Server Files needed asterisk-1.4.x.tar.gz asterisk-addon-1.4.x.tar.gz asterisk-sounds-1.4.x.tar.gz

6. Installing a Pure VoIP Server Download required packages wget http://downloads.digium.com/pub/asterisk/old-releases/ asterisk-1.4.14.tar.gz wget http://downloads.digium.com/pub/asterisk/old- releases/asterisk-addons-1.4.6.tar.gz wget http://downloads.digium.com/pub/asterisk/old- releases/asterisk-sounds-1.2.1.tar.gz Installation Install mpg123 to play mp3 files for music-on-hold before Asterisk’s installation wget http://mpg123.orgis.org/download/mpg123-1.2.0.tar.gz tar -zxvf mpg123-1.2.0.tar.gz

7. Installation cd mpg123-1.2.0./configure make make install ln -s /usr/local/bin/mpg123 /usr/bin/mpg123 Installing Asterisk tar -zxvf asterisk-1.4.14.tar.gz cd asterisk-1.4.14 make clean./configure make make install make samples make config

8. Installation Installing Asterisk’s Add-ons tar -zxvf asterisk-addon-1.4.6.tar.gz cd asterisk-addon-1.4.6 make clean make make install Installing Asterisk’s Sounds tar -zxvf asterisk-sounds-1.2.6.tar.gz cd asterisk-sounds-1.2.6 make make install

9. Connecting Asterisk to PSTN

10. Installation Files needed libpri-1.4.x.tar.gz zaptel-1.4.x.tar.gz asterisk-1.4.x.tar.gz asterisk-addon-1.4.x.tar.gz asterisk-sounds-1.4.x.tar.gz

11. Installation Download required packages wget http://downloads.digium.com/pub/asterisk/old-releases/ asterisk- 1.4.14.tar.gz wget http://downloads.digium.com/pub/zaptel/releases/ zaptel- 1.4.8.tar.gz wget http://downloads.digium.com/pub/libpri/releases/libpri-1.4.3.tar.gz wget http://downloads.digium.com/pub/asterisk/old-releases/asterisk- addons-1.4.6.tar.gz wget http://downloads.digium.com/pub/asterisk/old-releases/asterisk- sounds-1.2.1.tar.gz

12. Installation Installing libpri tar -zxvf libpri-1.4.3.tar.gz cd libpri-1.4.3 make make install Installing zaptel tar -zxvf zaptel-1.4.8.tar.gz cd zaptel-1.4.8./install_prereq test;Check for dependencies./install_prereq install;Install dependencies if not installed./configure make make install make config The remaining installation is similar to that of a pure VoIP Asterisk System

13. Starting and Managing Asterisk Asterisk can be started by typing: /usr/sbin/asterisk To connect to an Asterisk daemon, type: asterisk –r To make Asterisk more verbose, type: asterisk -vvvvvr

14. Connecting to Asterisk Console Once connected to an Asterisk console, you will get: Asterisk 1.4.14, Copyright (C) 1999 - 2007 Digium, Inc. and others. Created by Mark Spencer Asterisk comes with ABSOLUTELY NO WARRANTY; type 'core show warranty' for details. This is free software, with components licensed under the GNU General Public License version 2 and other licenses; you are welcome to redistribute it under certain conditions. Type 'core show license' for details. ===================================================================== ==== Connected to Asterisk 1.4.14 currently running on localhost (pid = 3960) Verbosity is at least 3 localhost*CLI>

15. Asterisk’s Console Commands Type the following commands on Asterisk’s console: help To have a list of all commands reload To reload the configuration stop To stop the Asterisk process exit To exit the command line interface