Step-By-Step On How to Install Asterisk GUI

This should work in any RPM linux based system (Red Hat, CentOS, Federa, exc)
Download the latest version source files using svn. (yum install subversion)

cd /usr/src
svn checkout asterisk-gui
cd asterisk-gui
make install

I recommend backing up your configuration files before you continue. To achieve this just copy
/etc/asterisk under different name:
cp -r /etc/asterisk /etc/asterisk.backup
There are two files which you should modify

enabled = yes
webenabled = yes
We will have to add a new user to manager.conf:

secret = mysecret
read = system,call,log,verbose,command,agent,user,config
write = system,call,log,verbose,command,agent,user,config
bindport = 8088
prefix = gui
enablestatic = yes

Note: bindaddr means you can access it from anywhere, if you want access only on the local
machine, put instead.

Check your Asterisk-GUI configuration by running from /usr/src/asterisk-gui

make checkconfig

This script will check if your GUI is correctly configured.

Running asterisk-gui. In order to load the asterisk-gui, asterisk must restart/reload.
You can reload your Asterisk server from your CLI console by executing the command `reload`.

You can use asterisk-gui from these address: (to check the status)