Can someone provide me a code example of web hook callback in c#
You can get the example here:
https://community.ringcentral.com/questions/8584/webhook-notification-callback-c.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.
Download RingCentral Phone for Desktop:
Tip: switch to the "sandbox mode" before logging in the app:
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