Step 1: Log into your CallHippo account https://web.callhippo.com/dashboard
Step 2: Once you log in, click the "Users" tab in the left side panel.
Step 3: On the right-hand side, click on the gear icon and navigate to User Settings.
Step 4: Next, proceed to "Forward-to-device." under the user setting, Please input the preferred forwarding number, and then simply click on the "Save" button to confirm your selection.
I hope this is helpful!
In case of any doubt please reach to support@callhippo.com