вы забыли указать метод для URL обратного вызова status
Я включил его здесь в код
<?php
//"StatusCallbackMethod" can be "POST" or "GET", depends on the way you recieve it on your StatusCallback,
$options = array(
"StatusCallbackMethod"=>"GET",
"StatusCallback" => 'http://173.203.104.63/call/out/log-callback.php? id='.$id
);
$client = new Services_Twilio($sid, $token, $version);
try {
// Initiate a new outbound call
$call = $client->account->calls->create(
$phonenumber, // The number of the phone initiating the call
$cphonenumber, // The number of the phone receiving call
'60',
'http://173.203.104.63/call/out/three.php?id='.$id, // The URL Twilio will request when the call is answered
$options
);