Having problems with sending SMS. Receiving this error.
"No available phones."
Can you share a little bit of your code and background how you send the SMS? Help us to help you.
Are you directly testing the API. If yes, then are you using tools like postman or curl?
If you are consuming the SMS API via sdk code, please give more details here to let us understand the issue.
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:
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