What is the content of that multimedia message?

1.MMS is supported by bai, a branch of GPRS network, and uses WAP wireless application protocol to transmit pictures, zhi sounds, characters and other information for du carrier.

Secondly, MMS service can realize instant multimedia information transmission from mobile phone end to end, from mobile phone terminal to Internet or from Internet to mobile phone terminal.

Thirdly, simply speaking, we can send short messages of pictures, photos and ringtones, which we call "MMS".