Create a database using the following commands in the Linux console:

cd /var/www/db
sqlite3 ivr.db

Create a table while in the SQLite3 console with the following command:

CREATE TABLE ivr-data (callerid INT NOT NULL, data INT NOT NULL);

To quit the console, type .quit.

Set the proper execution rights and ownership to the database with the following commands: chown asterisk:asterisk ivr.db.

Add the proper recordings using the Recordings module.

Create the ivr.php file in the /var/lib/asterisk/agi-bin/ folder with the following content:

#!/usr/bin/php -q
<?php

set_time_limit(60);
ob_implicit_flush(false);
error_reporting(0);
$stdin = fopen( 'php://stdin', 'r' );
$stdout = fopen(...