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surjit-singh3493 asked surjit-singh3493 commented

please help for fax

Exception: Unauthorized for this grant type SDK HTTP Error at Response text: { "error" : "unauthorized_client", "error_description" : "Unauthorized for this grant type" } Previous: Response has unsuccessful status #0 phar:///home4/crownfoo/public_html/foodondeal/ringcentral/demo/ringcentral.phar/ringcentral/ringcentral-php/src/Platform/Platform.php(214): RingCentral\SDK\Http\Client->send(Object(RingCentral\Psr7\Request)) #1 phar:///home4/crownfoo/public_html/foodondeal/ringcentral/demo/ringcentral.phar/ringcentral/ringcentral-php/src/Platform/Platform.php(301): RingCentral\SDK\Platform\Platform->sendRequest(Object(RingCentral\Psr7\Request), Array) #2 phar:///home4/crownfoo/public_html/foodondeal/ringcentral/demo/ringcentral.phar/ringcentral/ringcentral-php/src/Platform/Platform.php(123): RingCentral\SDK\Platform\Platform->requestToken('/restapi/oauth/...', Array) #3 /home4/crownfoo/public_html/foodondeal/ringcentral/demo/sms.php(20): RingCentral\SDK\Platform\Platform->login

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Tyler Liu answered surjit-singh3493 commented
Please refer to this reply:

It probably means that your app doesn't support the grant type you specified.
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Developer sandbox tools

Using the RingCentral Phone for Desktop, you can dial or receive test calls, send and receive test SMS or Fax messages in your sandbox environment.

Download RingCentral Phone for Desktop:

Tip: switch to the "sandbox mode" before logging in the app:

  • On MacOS: press "fn + command + f2" keys
  • On Windows: press "Ctrl + F2" keys