Yếu tố thông tin được sử dụng để chuyển tải các hướng dẫn kiểm soát một cách linh hoạt. Những hướng dẫn này có thể được giải thích bởi SMSC hoặc các doanh nghiệp vừa và nhỏ người nhận. Đặc biệt, như là một phần của tin nhắn, yếu tố này thông tin xác định các thiết lập của các sự kiện cho một báo cáo trạng thái được tạo ra bởi SMSC. | 96 Mobile Messaging Technologies and Services Service Centre Control Parameters This information element is used to convey control instructions in a flexible way. These instructions may be interpreted by the SMSC or the recipient SME. In particular as part of a message this information element identifies the set of events for which a status report should be generated by the SMSC. The possible events which can be identified for the generation of a status report are A transaction has been completed A permanent error when the SMSC is not making anymore transfer attempts Table IE service centre control parameters IEI 0x06 from release 99 Service Centre Control Parameters IEDL 0x01 1 octet 1ED Octet 1 Selective Status Report SR The four least significant bits bits indicate whether or not a specific status report is to be generated as shown below Bit 0 SR for transaction completed 0 no status report to be generated 1 status report to be generated Bit 1 SR for permanent error when SMSC is not making anymore transfer attempts 0 no status report to be generated 1 status report to be generated Bit 2 SR for temporary error when SMSC is not making anymore transfer attempts 0 no status report to be generated 1 status report to be generated Bit 3 SR for temporary error when SMSC is still trying to transfer the short message 0 no status report to be generated 1 status report to be generated Bits 4 and 5 are reserved for future use Bit 7 Original UDH This bit indicates whether or not the original user data header is to be included in the status report. The bit is set to 0 if the original UDH is to be included it is set to 1 otherwise Short Message Service 97 A temporary error when the SMSC is not making anymore transfer attempts A temporary error when the SMSC is still trying to transfer the message. For the successful generation of the status report by the SMSC or by the receiving entity the originator SME must also set the TP-Status-Report-Request parameter in .
