How does Apple switch between SMS and imessage?

2. Find information under Settings.

3. find imessage.

4. close imessage.

5. Open the message again at this time, and you can see the text displayed in the input box and turn it into SMS/MMS.

Imessage: It is an instant messaging software launched by Apple, which can send short messages, videos and so on. It has high security. Different from the SMS/MMS service of operators, users only need the data support of WiFi or cellular data network to complete communication.

Functional features:

1. With iMessage, you can send and receive messages, photos, videos, location information and contact information to any Mac user who uses iPad, iPhone, iPod touch or Mountain Lion. If you have more than one Apple device, iMessage can keep an uninterrupted conversation on all devices.

2. You can send a message to one person alone, to many friends at the same time, and attach your favorite photos, videos or links. Everyone will see your reply. The more people there are, the more information they receive.

It is reassuring to know that the sent information has been read and received. IMessage can tell you whether the message has been delivered, and if the receiver has enabled the read receipt, you can also see the read receipt message of the message. When someone is replying, iMessage can also display status information so that you can continue the conversation naturally and smoothly.

4. On iPhone, when the text bubble is blue instead of green, you know that you are using iMessage instead of SMS. You will receive a reply faster, the SMS conversation is free, the SMS has been sent to all Apple devices of the receiver, and the other party has received the SMS, so that the SMS controller who uses the SMS service will know and turn green with jealousy.

The difference with SMS:

When 1. is sent, the content is marked in blue, indicating that the SMS content is being sent in the form of iMessage.

2. When sending, the content is marked in green, and the display screen shows that it is sent by ordinary SMS.

3. In the state of GRPS cellular or wifi, there is no charge when sending short messages, only a traffic charge, but when sending content through iMessage, the other party needs to open iMessage service at the same time.

4. SMS is charged according to the prescribed charging standard.