Creating SMS Webhook

To create SMS Webhook, from the Main Menu, go to  Settings -> Webhooks...

Click on Create Webhook...

Event: Select the event.
Type: Select SMS.
Description: Give your webhook a description.

Click Continue...

Status: Select the Status. InActive Webhooks won't be executed. 
Description: Give your webhook a description for your reference. 

From: The from number. You must purchase a number. From the Main Menu go to Call Tracking -> Purchase Numbers
To: The number to send the SMS to (International Format) 
Message: The Text message.