SPs now provide SMS services require access to each mobile operator, although as a SMS is a SMPP protocol and the mobile switching center. However, in order to provide information services, the management, and billing of various services, each mobile operator has developed a corresponding gateway protocol to develop an interface to SP. Therefore, these gateway protocols are to perform a conversion, converting the information sent by the SP into the SMPP protocol to send to the switching center, and implements the billing and management functions of the business.
From the existing four mobile operators, there are four different SMS gateway protocols. China Mobile (CMPP), China Unicom (SGIP), China Telecom (SMGP), China Netcom (CNGP). The first two operators are primarily for users of mobile phones, and the latter two operators are users against Little Lingtong. For these different protocols, due to different manufacturers of mobile operations, there are some small differences in different manufacturers, this should be more important, otherwise, such as China Mobile's CMPP gateway can run in Huawei gateway. The system is not necessarily used directly on the Aixin gateway.
Here are the present every gateway protocol. First of all, to be said to be the most used China Mobile Gateway Protocol --CMPP, the CMPP protocol is still used by two versions, one is CMPP2.0, and the other is CMPP3.0. Starting from SP access to CMPP3.0, it is an entered a MISC system. The maximum difference between CMPP2.0 and 3.0 on the protocol is 3.0 adds a linkID. Then add the definition of the user number in Fee_Terminal_Type, DEST_TERMINAL_TYPE, and SRC_TERMINAL_TYPE, and when these user numbers are 0: indicate a real number; 1: indicates a false code. As can be seen from the increased information, first, linkid is actually a temporary order relationship identifier, that is, for the online broadcast business, SP's SMS system receives this linkID to establish normal order relationship, and send it The information must be carried by LinkID to successfully charge, otherwise it will fail, and the information is not sent. This will prevent the SP chaos, the second, the user number type, now transmitted to the SP or the ordinary mobile phone number, then this identification is that it is possible to send the mobile phone number that is not the user, but It is a normal false code, then SP will not get the end user's mobile phone number. In addition to the improvements in agreement, CMPP3.0 also peeles from SP. Previously, the time of CMP2.0, the user's order relationship was grasped by the SP, so it was easy to show the phenomenon of SP private bundled users. Now China moves MISC1.6, put all the order relationships in operators, and The order of ordering users is used to order the SP by provision, and the ordering relationship is based on the data inside the operator, which is also technically to eliminate the problem of the order relationship of SP management.
Then, introduce another gateway protocol in mobile phones, China Unicom's SGIP, SGIP, and mobile CMPP have two versions, SGIP 1.2, SGIP 1.3. The main difference between the new and old versions is also added to the LINKID item. And for a variety of different business types, such as mobile phone on-demand, online on demand, etc. have been re-adjusted. China Unicom also on a management platform similar to mobile MISC, and various business monitoring of SP also reviewed the management platform.
Finally, to introduce the two agreements in Xiaomongtong, one is China Telecom's SMGP1.3 protocol, which is the CNGP1.0 protocol of China Netcom, and the two protocols use China Unicom in recent upgrades. Using the MMSP to monitor management, for the on-demand service, only the crowns corresponding to the service code can normal send and receive information. The above is a simple introduction of the SMS protocol provided by the current operator, the details of the detailed agreement, please go to the SP Forum on SMS technology.
July 19, 2005, Guangzhou.