Asterisk Click to Call from Webpage using the AMI Commands

Are you trying to figure out how to set up click to call from a webpage using the Asterisk AMI? Well look no further, this is an easy to follow guide on exactly how to do it.

So before we start a couple of things you have to know about my environment. First I am hosting the webpage on the Asterisk server for the click to call so I have Apache installed and running, second I have port 80 open on the Asterisk server firewall so I can allow external requests.

So first thing you need to do is configure your Asterisk manager config file with a username who can originate the call.

/etc/asterisk/manager.conf

[general]
displaysystemname = yes
enabled = yes
webenabled = yes
port = 5038

[clickadmin]
secret=asdf1234S3
permit=127.0.0.0/255.255.255.0
; Authorization for various classes
read = system,call,log,verbose,command,agent,user,config
write = system,call,log,verbose,command,agent,user,config

Once you create a user and password, in this case I have the username “clickadmin” then you can start writing the php code.

/var/www/html/clickcall/index.php

$extension = $_REQUEST['internalnum'];
$dialphonenumber = $_REQUEST['outboundnum'];

$timeout = 10;
$asterisk_ip = "127.0.0.1";

$socket = fsockopen($asterisk_ip,"5038", $errno, $errstr, $timeout);
fputs($socket, "Action: Login\r\n");
fputs($socket, "UserName: clickadmin\r\n");
fputs($socket, "Secret: asdf1234S3\r\n\r\n");

$wrets=fgets($socket,128);

echo $wrets;

fputs($socket, "Action: Originate\r\n" );
fputs($socket, "Channel: SIP/$extension\r\n" );
fputs($socket, "Exten: $dialphonenumber\r\n" );
fputs($socket, "Context: dial-outbound\r\n" ); // very important to change to your outbound context
fputs($socket, "Priority: 1\r\n" );
fputs($socket, "Async: yes\r\n\r\n" );

$wrets=fgets($socket,128);
echo $wrets;

So that webpage will respond to url post of http://[ip address]/clickcall/index.php?internalnum=101&outboundnum=4075551234

It will first place a phone call to the extension number, in the example case would be 101. Once extension 101 answers that call it will then place the outbound leg of the call to phone number 4075551234.