How to Automatically Dial an Extension on iPhone
Step 1. To automatically dial extension on iPhone, first open the ‘phone application’.
Step 2. ‘Dial’ the number you want to make a call on.
Step 3. Keep the “*” (asterisk) button pressed until a comma appears on the end of your dialed number. While pressing the “*” button make sure you hold it long enough, to let your iphone know it’s an extension dialing.
Step 4. Add an extension on iphone after the comma, in your dialed number.
Step 5. Tap to the ‘green call button’. After this, you will be dialed straight to the person.