Although many iOS apps identify phone numbers so you can just tap them to call, that doesn’t always work for a phone number sent to you in a text or email message, or posted on a Web page. Here’s the workaround so you don’t have to memorize the number temporarily or flip back and forth to the Phone app. Double-tap the start of the phone number to select it, and then drag the blue handle to extend the selection to the entire number. Tap Copy in the popover that appears to copy it. Then, in the Phone app, tap Keypad at the bottom, and then press and hold in the blank white area at the top where typed numbers would appear until a Paste button appears (it’s not a 3D Touch press, just a normal press without removing your finger right away). Tap Paste, and if the Phone app recognizes the number correctly, tap the green Call button to place the call.