I am trying to create webhook subscription for RingCentral through Password flow accesstoken.
I am trying to create webhook subscription for RingCentral through Password flow accesstoken.
If you are sure that your SSL certificate has no problem and you still get "SUB-524- HTTPS Certificate not valid" error. Please send an email to the developer support team or submit a support ticket.
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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