How call forwarding on iphone?

To turn on call forwarding on an iPhone, open Settings, tap Phone, select Call Forwarding, toggle the switch to On, and enter the phone number where you want your incoming calls redirected.Step-by-Step Procedure to Enable Call Forwarding1.Open Phone Settings:Step 1.Open the Settings app on your iPhone, scroll down, and select Phone (or Apps > Phone on iOS 18+).2.Select Call Forwarding:Step 2.Tap Call Forwarding and toggle the switch to On (green).3.Enter Forwarding Number:Step 3.Tap Forward To, type the complete phone number (including area code) where you want calls redirected, and tap Back.4.Verify Active Status:Step 4.Check the status bar at the top of your iPhone screen—a small phone icon with a right-pointing arrow indicates Call Forwarding is active.Comparison: GSM Settings vs. CDMA Dialing CodesNetwork / Setup MethodConfiguration LocationRequires Cellular Signal?Allows Conditional Forwarding?Standard iOS SettingsSettings > Phone > Call ForwardingYesNo (forwards all incoming calls)GSM Dialing CodesPhone App Keypad (*21*number#)YesYes (supports busy or unreachable rules)CDMA Dialing CodesPhone App Keypad (*72number)YesVaries by carrier network supportAlternative Carrier Star Codes (Quick Method)If the Call Forwarding toggle is missing in your iPhone Settings (common on some CDMA carriers like Verizon), you can set it up directly from the Keypad:Enable All Calls: Dial *72 followed by the 10-digit phone number (e.g., *721234567890) and press the green Call button.Disable Call Forwarding: Dial *73 and press the green Call button.