For each country, there are different SMS charges and could be sent nationally only. It is one way to convey some important information through a message. Users can check the status also whether the message has been sent or not.
Along with the call logs and details, you can check the SMS logs in Activity Feed by following the steps:
Login to CallHippo dashboard.
Navigate to the Activity Feed and click on the SMS.
Now you can see the charges on the right side and status in the middle.