Where can I download the expression of EMS message?

May 22nd 19:3 1 EMS is the abbreviation of enhanced message service, which is an upgraded version of SMS. Compared with SMS, the advantage of EMS is that it can not only send short texts like SMS, but also send simple images, sounds and animations, and it can still run on the original SMS network, with no difference in sending methods and operations. This standard is open, and any third-party company or individual interested in EMS can develop application software and services on this platform. However, a decisive factor restricting the development of EMS is that Nokia, as the world's largest mobile phone manufacturer, does not support EMS, but supports higher MMS. The so-called Short Message Service (SMS) is a wireless application that transmits short messages on the mobile network. It is the process of storing and forwarding information on the mobile network. 1992, on the GSM network of Vodafone in the UK, the world's first short message was successfully sent to the mobile phone through a PC. Like voice transmission and fax, short message service is the main telecommunication service provided by GSM digital cellular mobile communication network. It is transmitted through the wireless control channel and stored and forwarded through the short message service center. The information content of each short message is limited to 140 octets. The message (plain text) sent from the sender is stored in the Short Message Center (SMS) and then forwarded to the destination user terminal. This means that even if the receiving terminal cannot receive the information immediately due to power failure or other reasons, the system can still save the information and resend it at a later appropriate time. So, what can SMS do? If you use it to send English text, you can send 160 characters (because English characters are encoded with 7 bits, 140 bytes can encode 160 characters). If you send Chinese text, you can send 70 Chinese characters. Of course, it can also be sent in both Chinese and English. Similarly, you can also use it to send binary messages (such as mobile phone ringtones or mobile phone boot screen) with bytes less than 140. Of course, if your mobile phone supports EMS (Enhanced Short Message Service), you can send mixed messages including text, simple graphics and black and white pictures to an EMS-compatible mobile phone. Compared with traditional voice service, SMS has the following advantages: 1. Short messages are transmitted through signaling channels and do not occupy independent channels, so the sending and receiving of this information can be carried out simultaneously with voice, data and fax services on GSM network without interference. 2. SMS can also support domestic and international roaming, so that mobile users can use SMS service to send SMS to any other mobile users using GSM system in the world. 3. The PCS network based on GSM, CDMA and TDMA also supports SMS, so we say that SMS is a real global mobile data service. 4. SMS uses the feedback function. If the user wants, he can get the information report of each message sending result by setting up the system. 5. The price is low. 160 bytes of short message data is roughly equivalent to the space occupied by voice calls around 1 second. But there are advantages and disadvantages, and the disadvantages of short message service are also obvious: 1. Monotonicity of information itself. Short message can only transmit plain text information, graphics and sound files, but can't transmit mixed information. 2. The length of information is limited. Because each short message can't exceed 160 bytes, for a slightly longer short message service such as mail or news, short messages have to be cut into several segments and sent many times, which is very expensive. 3. Data transmission rate and delay. Because SMS uses a low-speed signaling channel, all kinds of transmission are enjoyed, so the speed is relatively slow. In order to solve the above shortcomings of short message service, a new generation of multimedia short messages has been launched. There are currently two protocols, EMS and higher MMS.