How to choose not to send imessage?

Select u to send this command, as follows:

1. Turn off iMessage: In the settings of iPhone, click the Info option, and then turn off iMessage.

2. Use other communication applications: Applications such as WhatsApp, Facebook Messenger or Skype do not use iMessage. You can use these applications to send information without using iMessage.

4. Use the wireless carrier's online short message portal: The wireless carrier may have an online short message portal that can be used to send short messages without using iMessage.

5. Use email: If the recipient has an email address, you can contact him by email without using iMessage.