public function create($to, $mediaUrl, $options = array()) {
        $options = new Values($options);

        $data = Values::of(array(
            'To' => $to,
            'MediaUrl' => $mediaUrl,
            'Quality' => $options['quality'],
            'StatusCallback' => $options['statusCallback'],
            'From' => $options['from'],
            'SipAuthUsername' => $options['sipAuthUsername'],
            'SipAuthPassword' => $options['sipAuthPassword'],
            'StoreMedia' => Serialize::booleanToString($options['storeMedia']),
            'Ttl' => $options['ttl'],
        ));

        $payload = $this->version->create(
            'POST',
            $this->uri,
            array(),
            $data
        );

        return new FaxInstance($this->version, $payload);
    }