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522 Using Smartphones and Tablets Effectively | Making Calls and Using Basic Phone Features, and Mobile Settings


Smartphones and tablets combine communication, apps, cameras, internet access, and stored information in a portable touchscreen device. Their small size makes them convenient, but it also means battery life, storage space, mobile data, and on-screen controls need regular attention.
The following topics focus on ordinary mobile use: calls, typing, apps, photos and videos, network settings, and the balance between battery, storage, and other device settings. The aim is to make common actions easier to recognize and manage without depending on one phone model.

522.1 Making Calls and Using Basic Phone Features

A mobile phone’s basic calling features usually include making and receiving calls, viewing recent calls, using contacts, adjusting call volume, and ending or rejecting a call. The symbols vary by device, but the screen normally shows who is calling when that information is available and provides clear controls once a call begins. Speaker mode can make a call audible in the room, while mute turns off the phone’s microphone without ending the connection.
Contact lists reduce the need to remember numbers, but a saved name should not be treated as proof of identity when a call is unusual or requests sensitive information. During an ordinary call, good device use includes checking that the correct audio option is active and that private information cannot be overheard unnecessarily. If sound fails, checking volume, Bluetooth connections, microphone permissions, or whether the phone is muted can solve simple problems before assuming the network has failed.

522.2 Using the Touchscreen and On-Screen Keyboard

On a phone or tablet, most movement begins with the touchscreen. A tap selects or opens, a swipe moves through a page or changes screens, a drag moves an item, and a pinch can change the size of some content. The keyboard appears when a text field is active and usually changes its layout for letters, numbers, symbols, or different languages. Predictive suggestions and automatic correction can speed typing, but they can also replace a word with something unintended.
Typing accurately is easier when the cursor position is understood. Tapping inside text places the insertion point, while selection handles may allow a word or passage to be copied, cut, replaced, or moved. Voice typing can help some users, though it may mishear names or work poorly in noisy places. When the screen seems unresponsive, cleaning moisture from the display, removing gloves that block touch, or closing a frozen app may help. Repeated hard pressing is rarely useful because touchscreens respond to contact and gestures rather than force.

522.3 Managing Apps on a Mobile Device

Mobile apps can be opened from the home screen, app list, search, or a notification, depending on the device. They may continue running in the background after the visible screen is closed, using some battery, data, location access, or notifications. App settings usually allow a person to review storage use, permissions, notification behavior, and whether the app can use mobile data or background activity.
Organization also matters when many apps accumulate. Folders, home-screen pages, search, or a simplified layout can make frequently used tools easier to find. Updates may repair faults or improve security, but a large update can use significant data or storage, so timing and connection choice can matter. If an app behaves badly, closing it, checking for an update, restarting the device, or clearing temporary data where the system allows it can be sensible early steps. Account information inside the app should be protected before deleting or resetting anything important.

522.4 Taking and Managing Photos and Videos

Phone and tablet cameras create photo and video files that are normally stored in a gallery or photos app. The camera may offer front and rear lenses, flash, zoom, focus, portrait modes, or different video qualities, but the most useful control is often simple framing and steady handling. Higher resolution and longer video can improve detail while also creating much larger files, which affects storage space and the time or data needed to share them.
Photos can be grouped by date, album, or search features, and unwanted duplicates or failed shots can be deleted when storage is tight.
Some devices automatically back up media to an online account, while others keep it only on the device unless the user chooses another location. Before deleting a valuable image, it is worth knowing whether a backup actually exists. Sharing also deserves care: a photo may reveal faces, documents, locations, or private surroundings, so the fact that it is easy to send does not mean every image should be distributed widely.

522.5 Managing Mobile Data and Wi-Fi Settings

A mobile device can reach the internet through mobile data, Wi-Fi, or sometimes a connection shared by another device. Wi-Fi uses a nearby network, while mobile data uses the cellular service linked to the phone or SIM. The device may switch between them automatically, and an icon can show which connection is active. A connected Wi-Fi symbol does not guarantee that the network itself has internet access, so a page that will not load may still be a network problem.
Settings usually allow Wi-Fi and mobile data to be turned on or off and may show how much cellular data apps have used. Automatic app updates, video quality, backups, and background activity can consume large amounts without much visible action. Public Wi-Fi may be convenient, but sensitive tasks deserve extra caution because the network is not under the user’s control. If a connection is weak, moving closer to the Wi-Fi source, checking airplane mode, reconnecting, or switching connection type can help identify where the problem lies.

522.6 Managing Battery, Storage, and Mobile Settings

Battery, storage, and mobile settings often affect one another. A device with very little free storage may slow down, fail to install updates, or struggle to save new photos. Heavy background activity can use both battery and mobile data, while bright screens and frequent location use can shorten the time between charges. Looking at the device’s battery and storage summaries can reveal which apps or files are using the most resources instead of guessing from appearance alone.
Useful adjustments depend on the situation. Removing unneeded downloads or large duplicate videos can free space; lowering brightness or limiting unnecessary background activity can extend battery life; and restricting large transfers to Wi-Fi can protect a limited data allowance. If storage remains almost full after ordinary cleanup, moving personal files to reliable external or cloud storage may help. A battery that swells, overheats unusually, or loses power abruptly needs more caution than a simple settings change.