How to Automatically Dial an Extension Number on iPhone
There are quite a few people in your contacts that probably have an extension that needs to be dialed when you call their office phone. Adding a pause in a phone number within a contact will allow the phone to dial the office number, pause, and then dial the extension number. In this example we will show you how to add an extension in an existing contact. You can also add the extension in the number when you create a new contact. You may have to add more than one "pause" before the extension number to get it to work correctly.