A given computer display system will have a maximum resolution that depends on its physical ability to focus light (in which case the physical dot size-the dot pitch-matches the pixel size) and usually several lesser resolutions.
Using the Speakerphone in Calls. You can turn on your iPhone's speakerphone when you make a call and the recipient answers, or when you accept an incoming call. In both cases, a menu screen appears on your iPhone.To switch to speakerphone, tap the Speaker button which turns blue when activated.To turn off the speakerphone at any time during a call, tap the button again.n both cases, a menu screen appears on your iPhone. To switch to speakerphone, tap the Speaker button which turns blue when activated. To turn off the speakerphone at any time during a call, tap the button again.
iPhone Alert Sounds in iOS 7. To turn the iPhone ringer off and use silent mode, all you need to do is flip a switch. On the upper left-hand side of the iPhone is a small switch. It's just above the two volume buttons and below the phone's corner. This is the iPhone's ringer control switch.To turn the iPhone ringer off and put the phone into silent mode, simply flip this switch down towards the bottom of the phone.o turn the iPhone ringer off and use silent mode, all you need to do is flip a switch. On the upper left-hand side of the iPhone is a small switch.