One, MMS for multimedia messaging service abbreviation, Chinese translation for multimedia SMS services. China Mobile has named it "MMS", which can be used to send multimedia information such as text, pictures, animations, audio and video. MMS is the abbreviation of Multimedia message service, Chinese name is multimedia information Services. The industrial standard of MMS is developed by two organizations, WAP Forum (WAP forum) and 3GPP (3G Partnership project:3g). As a result, MMS is designed to run on top of the WAP protocol, not limited to transmission formats, both for circuit-switched data formats (circuit-switched), and for Universal Packet Radio Service GPRS format (General Packet Radio Service). Its working principle is the use of high-speed transmission technology edge (enhanced data rates for GSM Erolution is a new technology to improve the data rate, is the GSM to the third generation of mobile communication system IMT-2000 transition steps. It is also known as "GSM 384" because it enables data rates to be increased from current 9.6kbit/s to 384kbit/s, which can support a wide range of high-speed data services such as voice, internet browsing, email, conference TV, and GPRS, with WAP (Wireless Application protocol) Transmits video, pictures, sounds and text for the carrier. The size of the MMS is usually 50KB, which is determined by both the operator and the handset terminal. Most mobile phones in China now only support MMS smaller than 50KB. Knowledge: The Mms:mms protocol (Microsoft Media server Protocol) is a protocol used to access and stream incoming. asf files in a Windows Media server. The MMS protocol is used to access unicast content on Windows Media Publishing points. Multimedia Messaging Service (Mms-multimedia messaging service) is a new type of message service, which is developed on the basis of short message service. MMS is the 3rd generation of Mobile communications Standardization organization 3GPP Development of global information transmission standards, is a new data services, users can send and receive more personalized multimedia messages like the use of short messages. It combines different media, such as text, pictures, photos, audio, video, etc. into a multimedia message to send. MMS information capacity is also greatly increased, can reach about 100kB. It is also convenient for users to send MMS operations on the terminal. Like SMS, MMS uses the technology of "store and forward", the information created by the user can be transmitted automatically and quickly between the mobile phone and the mobile phone, and the message is still positioned by the receiver's mobile phone number, and the information will be stored in the Multimedia Message Center (MMSC) when the receiver is shut down or temporarily out of service. Until it can be delivered correctly. Multimedia Messaging service does not rely on the basic network, it can be implemented in the 2nd generation, 2.5 generation and 3rd generation wireless network, regardless of GSM, GPRS, WCDMA network can support MMS business. Taking into account the network bandwidth, data transmission speed, MMS business will be in the current GPRS network Take-off, in the next 3G network to mature. After the mobile phone terminal synthesizes The multimedia message, may send the multimedia message to all legal users in the net, by the multimedia Message Center MMSC to the multimedia message storage and processing, and is responsible for the multimedia message in the different MMSC transmission and so on the operation. At the same time, the receiving user can receive multimedia messages from MMSc. Multimedia Messaging service requires a WAP gateway, a data transmission network such as circuit switching network, GPRS or WCDMA network, and a short message center. At present, MMS service in the implementation of WAP as the bearer, short message for prompt notification, from MMS mobile phones automatically to the multimedia Message Center MMSc to extract. In the eyes of users, multimedia messages are sent from the multimedia Message center in the same way as short messages. The MMS protocol (Microsoft Media server Protocol) is a protocol used to access and stream incoming. asf files in a Windows Media server. The MMS protocol is used to access unicast content on Windows Media Publishing points |