Add retrieve-call-info

Author: mheap

voice/retrieve-call-info/index.php

@@ -0,0 +1,9 @@
+<?php 
+require_once __DIR__ . '/../../config.php';
+require_once __DIR__ . '/../../vendor/autoload.php';
+
+$keypair = new \Nexmo\Client\Credentials\Keypair(file_get_contents(NEXMO_APPLICATION_PRIVATE_KEY_PATH), NEXMO_APPLICATION_ID);
+$client = new \Nexmo\Client($keypair);
+
+$call = $client->calls()->get(NEXMO_CALL_UUID);
+echo json_encode($call).PHP_EOL;