Thiết lập địa chỉ mà bạn có thể nhận tin nhắn. Mở ứng dụng Messages (Tin nhắn). Chọn nút "Compose" (Soạn tin nhắn) để bắt đầu cuộc trò chuyện. Chọn nút "Send" (Gửi). Đính kèm hình ảnh và video.

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On an iPhone, iMessages can be sent to either your phone number or your email address. If you have multiple email addresses associated with your account, you can choose which ones you want to use.  Open the Settings app on your device and select "Messages". Tap "Send & Receive" and then tap an address to toggle it. You can also add another email address that you want to be able to be reached at. You can only have one Apple ID email address associated with a device at a time. Select the address or number that you want to send messages from. Like SMS messages, iMessage messages are sent through your Messages app. You can start a new conversation with anyone on your contacts list. It will only be an iMessage conversation if they are using iMessage as well. You can see whether the message will be a standard SMS or an iMessage by looking at the color of the Send button. If the button is blue, the message will be sent as an iMessage. If the button is green, it will be sent as an SMS. iPads and iPods can only send messages to other iMessage users. You can attach media to your messages just like you would a text. iMessage allows you to send them without eating into your carrier's MMS plan.  Tap the Camera button in the lower left corner of your conversation. Tap the Photo Library option to see all of the photos and videos on your device. Tap on a photo or video to add it to your message. Send the message. If you're sending the message over a mobile data network, it will count against your plan.