AT指令-USSD [英] AT command - USSD

问题描述

我正在使用minicom(适用于Linux的串行端口软件)与我的GSM调制解调器进行交互， 实际上，现在我正在尝试将我的移动提供商的一项服务与AT-Command结合使用.

I'm using minicom (serial port software for linux) for interacting with my GSM modem, actually now I'm trying to use one of my mobile-provider's services with AT-Command.

我在这里说，我想看看我的余额:

here I say, I wanna see my balance:

AT+CUSD=1,*555*87*1234#

OK

+CUSD: 1,"this service will deduct you 5cent from your balance, to continue please enter 1",15

所以，我在这里发送了"1"，但是什么也没发生，会话也就关闭了.

so, here I sent "1", but nothing happened and session get closed.

AT+CUSD=1,1

OK

什么都没有发生，但是会话关闭了.

nothing happen, but session closed.

使用普通电话，输入1后，我会得到我当前的余额.

With normal phone, after entering 1, I will get my current balance.

请帮助我.

推荐答案

命令的格式为AT+CUSD=[<n>[,<str>[,<dcs>]]]，第二个参数<str>是一个字符串，应使用双引号引起来.例如

The format of the command is AT+CUSD=[<n>[,<str>[,<dcs>]]], and the second parameter, <str>, is a string that should be enclosed in double quotes. E.g.

AT+CUSD=1,"*555*87*1234#"
AT+CUSD=1,"1"

有关AT+CUSD和AT+CUSD的更多详细信息，请参见 27.007 . V.250 用于常规AT命令处理.

See 27.007 for more details about AT+CUSD and V.250 for general AT command handling.

如果您的电话对AT+CUSD=1,1给出的OK响应确实很差，则应该给出ERROR. V.250清晰可见:

If your phone gives an OK response to AT+CUSD=1,1 that is really bad, it should have given ERROR. V.250 is crystal clear on this:

字符串常量 应该在开头和结尾处都用双引号字符

String constants shall be bounded at the beginning and end by the double-quote character

这篇关于AT指令-USSD的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！