希望得到推荐GSM协议的资料
希望得到推荐GSM协议的资料都下载了谢谢
已经保存了,谢谢!3~~q
这些东东对我也很有帮助,谢了! 收藏 xiexie谢谢
谢谢~~~~ 已经保存,谢谢!! 已下载,谢谢! 已下载,多谢啦!ETSI中有 FACILITY Information element具体指的是什么?
ETSI中有 FACILITY Information element具体指的是什么? 多谢了. 谢谢!!!!! To,fanli2000_0
这段解释我找了很久啊!不知道是否满足您的要求,本身ETSI规范资料太多啦!各位大侠最好将文档名称或具体那段资料上下文说明清楚啊
Facility Information Element (FIE)
This information element is the core element for the invocation, registration and every other action concerning supplementary services. It's 3rd octet contains the protocol profile identifier. The only three values defined for this identifier are the Remote Operations Protocol, the CMIP Protocol (see Q.941) and the ACSE Protocol (see X.217). These protocols are layer seven protocols.
REGISTER
This message is used for non call-associated transactions between subscriber equipment and a local exchange. Sending this message initiates the assignment of a new call reference. This is necessary if more than one transaction happens at the same time independent from each other.
FACILITY
This message is needed if transactions happen during the active state of a call. Beside the usual content of a Q.931 message (protocol discriminator, call reference and message type) it contains only two more info elements: the FIE and the Display info element. 中文版赶紧上传啊 收藏了,谢谢! 多谢啦 怎么无法下载 我想下载