Here's a breakdown of how to start or stop call forwarding on your smartphone, covering both Android and iOS devices. A call forwarding allows you to forward an incoming call to another number or voicemail. A device with active call forwarding will forward incoming calls to configured number as per the connections defined. This guide will explain the steps to deactivate call forwarding using the MMI code. Use the MMI code to cancel the call forwarding on your Android and iPhone. Disabling call forwarding on your Airtel number is as effortless as activating it. To deactivate call forwarding, follow these straightforward steps: Open the phone app on your device and navigate to the dialer. Dial ##21# and press the call button to send the deactivation command. How to Stop Call Forwarding? If there is any call forwarding enabled via your telecom on your phone or number, we have a detailed guide to stop any type of call forwarding on your phone.