MMS evolved from SMS, which allows mobile device users to send and retrieve messages with a rich combination of media elements, compared with SMS and EMS, such as text, color image, audio and video.

• 相较于以往只能传送较少文字与基本图形的简讯服务，MMS可以支援附有文字与彩色影音的多媒体讯息，甚至加值服务的资讯也可以透过MMS而传递给用户。