Call forwarding (or call diverting), in telephony, is a feature on some telephone networks that allow an incoming call to a called party which would be otherwise unavailable to be redirected to a mobile telephone or other telephone number where the desired called party is situated.

Notice that the fee charging structure for a calling party to place a call to the called party which has their number forwarded can be subtle: if the called party has forwarded their number to a mobile telephone, the caller could incur higher rates due to the subsequent use of the mobile telephone network.