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kailashvasan VK avatar image
kailashvasan VK asked Phong Vu edited

ringout api c# soln - not getting authorized

ringout api c# soln - not getting authorized

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error code: OAU-251

unauthorized for Grant-type

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Phong Vu avatar image
Phong Vu answered Phong Vu edited

Then there is nothing related to the ring-out endpoint. You problem is about authentication. What type of authentication is your app and how did you login the app before you call that API?

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can you please share your contact number to clarify on this.?

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There are lots of similar questions/answers in this forum. Just search for either "error code: OAU-251" or "unauthorized for Grant-type" to find answers.

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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