<?php require_once "./plivo.php"; # Set te caller ID using Dial XML $r = new Response(); // Generate a Dial XML ans set the caller ID $params = array('callerId' => '1111111111'); $d = $r->addDial($params); $number = '2222222222'; $r->addNumber($number); Header('Content-type: text/xml'); echo $r->toXML(); /* Sample successful output <Response> <Dial callerId="1111111111"> <Number>2222222222</Number> </Dial> </Response> */ # Set the caller ID using Call API $auth_id = "Your AUTH_ID"; $auth_token = "Your AUTH_TOKEN"; $p = new RestAPI($auth_id, $auth_token); $params = array('to' => '14155069431', 'from' => '18583650866', 'answer_url' => "https://glacial-harbor-8656.herokuapp.com/testing.php/detect", 'answer_method' => "GET"); $response = $p->make_call($params); print_r($response); /* Sample Output ( [status] => 201 [response] => Array (