Use the speakerphone. By Scalper1 | October 31, 2013 0 Comment Scalper1 News While on a call, tap to switch to speakerphone. Tap again to turn off the speakerphone. If you’ve connected a Bluetooth device, you can select speaker or your device by tapping . Scalper1 News Scalper1 News Related posts: Turn on Wi-Fi or Bluetooth. Connect to a Wi-Fi network. Bookmark a page. Erase your iPhone remotely.