# Fax using Ringcentral - Error: Authentication Service Denies Access

**URL:** <https://community.open-emr.org/t/fax-using-ringcentral-error-authentication-service-denies-access/16035>\
**Category:** Support\
**Created:** [February 11, 2021, 12:58pm UTC](https://community.open-emr.org/t/fax-using-ringcentral-error-authentication-service-denies-access/16035 "2021-02-11T12:58:40Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![Ralf\_Lukner](https://community.open-emr.org/user_avatar/community.open-emr.org/ralf_lukner/32/11962_2.png) [@Ralf\_Lukner](https://community.open-emr.org/u/Ralf_Lukner)\
**Post date:** [February 11, 2021, 12:58pm UTC](https://community.open-emr.org/t/fax-using-ringcentral-error-authentication-service-denies-access/16035/1 "2021-02-11T12:58:40Z")

</div>

**Situation**  
Error: Authentication Service Denies Access. I have double-checked the information for account access to Ringcentral. How do I go about trouble-shooting this?

**OpenEMR Version**  
I’m using OpenEMR version 5.0.2(5)

**Browser** :  
I’m using: Safari 14.0.3 (16610.4.3.1.4) running on AWS (Standard version)

**Operating System**  
I’m using: AWS Ubuntu 16.04.7 LTS (GNU/Linux 4.15.0-1093-aws x86\_64)

**Logs**

```auto
[Thu Feb 11 12:51:24.824671 2021] [php7:warn] [pid 4115] [client 67.60.83.139:50475] PHP Warning: json_decode() expects parameter 1 to be string, array given in /var/www/localhost/htdocs/openemr/interface/modules/custom_modules/oe-module-faxsms/controllers/RCFaxClient.php on line 162, referer: https://xxxxxxxxxx.com/interface/modules/custom_modules/oe-module-faxsms/contact.php?isDocuments=false&isQueue=queue&file=/tmp/xxxxxxxx

```