How does Apple use to send short messages?

The specific method for setting up Apple's SMS to send photos is as follows:

1. Step 1: Open the settings of the mobile phone-click General;

2. Step 2: Find the network inside and click Open;

Step 3: Find the cellular data in the network again and click Open;

4. Step 4: Set APN (CMWAP)-MMSC (mmsc.monternet.com)-MMS agent (10. 0. 172)- the maximum information capacity of MMS (307200) (usually 10240 is enough.

5. Step 5: Finally, you can send MMS (click SMS to edit MMS). If it still doesn't work, if there is a SMS setting, see if the MMS switch is turned on. Restart the phone-Settings-SMS-Turn on the MMS switch.