You need to manually turn off the forwarding. We recommend that you create a reference named "redirect". In that reference, you can specify an end time for when the redirect should cease. Follow the guide here

1. Click on your profile card
2. Click on "Incoming Calls"
3. Select "Handling of incoming calls," Toggle if it should apply to all your numbers
4. Choose "Redirect"
5. Enter the number you want to redirect to
6. Decide if you want a delay before the call is redirected
7. Toggle if you want a voice message to be played before the call is redirected
8. Save