Problem with Fax API service Hello, guys! I'm trying to send fax via Fax API and I've permanently got some strange error. I'm using PHP.This is my code:define('RING_CENTRAL_USERNAME', 'xxxxx');define('RING_CENTRAL_PASSWORD', 'xxxxx');function SendFax($recipient_number, $recipient_name='Recipient', $resolution='High', $sendtime=false, $attachment=false){if($resolution!='High' || $resolution!='Low') $resolution = 'High';if(!$sendtime) $sendtime = gmdate('d:m:y H:i');if(!$recipient_name) $recipient_name = 'Recipient';if(!RING_CENTRAL_USERNAME) return 'NO_RING_CENTRAL_USERNAME';if(!RING_CENTRAL_PASSWORD) return 'NO_RING_CENTRAL_PASSWORD';$data = array('Username' => RING_CENTRAL_USERNAME,'Password' => RING_CENTRAL