Managing telecommunications flow is a critical component of professional efficiency. On the iPhone, Call Forwarding allows you to redirect incoming calls to another number, ensuring that high-priority communications are never missed, whether you are leveraging an AI-driven virtual assistant or simply routing calls to a secondary device. Below are the two primary methods to execute this configuration on iOS.

Method 1: Utilizing the iOS System Settings

The most intuitive way to manage call redirection is through the native iOS software interface. This method interacts directly with your carrier's settings via the phone's internal software logic.
1. Open the Settings app on your iPhone.
2. Scroll down and tap on Phone.
3. Select Call Forwarding from the menu options.
4. Toggle the Call Forwarding switch to the ON position (it will turn green).
5. Tap on Forward To and manually input the phone number where you want calls to be redirected.
6. To OFF, simply return to this menu and toggle the switch back to the gray position.
Pro Tip: Ensure you are within a stable cellular network range when toggling this feature, as the iPhone must communicate the change to your service provider's server immediately.
Method 2: Implementing Network MMI Codes (The Automation Approach)

For power users and those looking to automate their workflows, using Interrogative MMI Codes is often more reliable. This method bypasses the graphical user interface and sends a direct command to the cellular network infrastructure.
1. Open the Phone app and navigate to the Keypad.
2. To Turn ON call forwarding, dial 21 followed by the 10-digit phone number, then the # key. (Example: 211234567890#).
3. Press the Call button. A confirmation message will appear stating the registration was successful.
4. To Turn OFF call forwarding, dial ##21# and press the Call button.
This method is highly efficient for users who use automation scripts or shortcuts to manage their availability based on AI-scheduled deep-work blocks.
AI Implementation Score
At Smart AI Fix, we evaluate software features based on their integration potential with automated systems. Call forwarding remains a foundational tool for directing traffic to AI voice-processing hubs.
| Criteria | Score (1-10) | Notes |
|---|---|---|
| Ease of Automation | 9/10 | MMI codes allow for rapid execution via shortcuts. |
| Software Reliability | 8/10 | Dependent on carrier-side support and signal strength. |
| AI Compatibility | 10/10 | Essential for routing to AI-driven CRM and virtual receptionists. |
| User Interface | 7/10 | Native settings can sometimes lag depending on iOS version. |
By mastering these two methods, you ensure that your communication stack remains flexible. Whether you are redirecting calls to a Smart AI answering service or another human operative, these protocols are essential for maintaining a professional edge in a hyper-connected environment.