I am able to send sms using c#. But my problem is I don't know to receive those sms.
Can I get any help to know how I can receive the sms. Any sample will be great.
Using PubNub, you can receive sms. Check it out here: https://github.com/ringcentral/ringcentral-csharp-client/blob/master/RingCentral.Test/SubscripotionTest.cs#L31
If you want WebHook, check the reference: https://github.com/ringcentral/ringcentral-csharp-client/blob/master/RingCentral.Test/WebHookTest.cs
The direct API of RinCentral APIs to receive sms content is:
/restapi/v1.0/account/~/extension/~/message-store/<message id>/content/<attachment id>
Here you need to put the message id and the attachment id which you can use in your c#