In my developer console i can't add permission EditAccounts. But some API methods requires this permission. How can i add this permission to my application?
You need to change that in Settings. Your question is answered here: https://forums.developers.ringcentral.com/questions/1269/how-add-editaccounts-permission-for-my-application-1.html
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.
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