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

        $data = Values::of(array(
            'To' => $to,
            'From' => $from,
            'Url' => $options['url'],
            'ApplicationSid' => $options['applicationSid'],
            'Method' => $options['method'],
            'FallbackUrl' => $options['fallbackUrl'],
            'FallbackMethod' => $options['fallbackMethod'],
            'StatusCallback' => $options['statusCallback'],
            'StatusCallbackEvent' => Serialize::map($options['statusCallbackEvent'], function($e) { return $e; }),
            'StatusCallbackMethod' => $options['statusCallbackMethod'],
            'SendDigits' => $options['sendDigits'],
            'Timeout' => $options['timeout'],
            'Record' => Serialize::booleanToString($options['record']),
            'RecordingChannels' => $options['recordingChannels'],
            'RecordingStatusCallback' => $options['recordingStatusCallback'],
            'RecordingStatusCallbackMethod' => $options['recordingStatusCallbackMethod'],
            'SipAuthUsername' => $options['sipAuthUsername'],
            'SipAuthPassword' => $options['sipAuthPassword'],
            'MachineDetection' => $options['machineDetection'],
            'MachineDetectionTimeout' => $options['machineDetectionTimeout'],
            'RecordingStatusCallbackEvent' => Serialize::map($options['recordingStatusCallbackEvent'], function($e) { return $e; }),
            'Trim' => $options['trim'],
            'CallerId' => $options['callerId'],
            'MachineDetectionSpeechThreshold' => $options['machineDetectionSpeechThreshold'],
            'MachineDetectionSpeechEndThreshold' => $options['machineDetectionSpeechEndThreshold'],
            'MachineDetectionSilenceTimeout' => $options['machineDetectionSilenceTimeout'],
        ));

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

        return new CallInstance($this->version, $payload, $this->solution['accountSid']);
    }