can I forward calls from my broken iphone to another using iCloud?

1. Can you not simply remove the SIM card from your broken iPhone to your other iPhone? That will solve your issue without forwarding calls. No, you cannot go to iCloud and forward calls.
2. If, for any reason, you cannot remove the SIM card from your old iPhone then call your carrier and get a new SIM card (deactivate the old SIM card) and put the new SIM card in your other phone.
3. If, for any reason, you cannot perform either of the above 2 mentioned tasks then you can call your carrier and ask them to forward your calls on the old phone to another phone number on your new phone.

Axel F.

You are welcome.

Axel F.