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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_PASSWORD,

'Recipient' => $recipient_number.'|'.$recipient_name,

'Resolution' => $resolution,

'Sendtime' => $sendtime,

'Coverpage' => '0');

if($attachment) $data['Attachment'] = '@'.realpath($attachment);

$ch = curl_init();

curl_setopt($ch, CURLOPT_URL, 'https://service.ringcentral.com/faxapi.asp');

curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);

// optional for debugging

curl_setopt($ch, CURLOPT_VERBOSE, 1);

curl_setopt($ch, CURLOPT_HEADER, 1);

curl_setopt($ch, CURLINFO_HEADER_OUT, true);

//SSL Settings

curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);

curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false);

// Post data to send

curl_setopt($ch, CURLOPT_POST, 1);

curl_setopt($ch, CURLOPT_POSTFIELDS, $data);

$result = curl_exec($ch);

curl_close($ch);

return $result;

}

$res = SendFax($phone, $ref - $patid, 'High', False, $filepath);

And I get result ($res):

HTTP/1.1 100 Continue

HTTP/1.1 200 OK

Server: nginx/1.10.2

Date: Fri, 10 Nov 2017 01:05:02 GMT

Content-Length: 1

Connection: keep-alive

Set-Cookie: RCRoutingInfo=B:uOC8cy7hEWo33JgK7DLPkAwlI+UrhiIIHYO+ZOIeDQjRBXf2/RhoGEvBtSJ/nkrG; Path=/

Set-Cookie: SCS_ROUTE=50bafe740f8d71bfa84d0a51df96494f; Path=/

x-frame-options: sameorigin

x-xss-protection: 1; mode=block

Set-Cookie: RCRoutingAdvice=SJC01P05JWS06; Path=/

Set-Cookie: JSESSIONID=0CjTRrSPEpKrPENi9A5WPDn5; Path=/

4

I've read that code 4 is "No fax data specified". That's - weird because I've checked - this file exists and it is in doc format.

$data['Attachment'] looks as @C:\Some\nested\directories\filename.doc.

I'm using Windows 8 X64 bit and php version 5.6.25 if it is important.