On old feature phones and some Android phones, you can configure the numbers on the Phone keypad (like 2, 3, 4, up to 9) to speed dial a contact. This specific feature isn't supported by the iPhone, but for folks who want to use something similar, you're in luck.
Here are eight ways to speed dial on iPhone. And by speed dial here, we mean to call a friend or family member quickly without digging through your lengthy contacts list.