多菜单的AT + CUSD命令：会话关闭，我无法进入第二个菜单

Question

带有多个菜单的USSD AT命令。

当我检查普通手机时，我必须按照这样的命令 -

USSD Command - *401*1*22# 

我收到了回复

Welcom to ---. You Will receive the menu shortly. Please exit

几秒后我得到一个菜单

1 Bill Payments 
2 Others 
Reply with your choice
Here I got two button as "Answer" and "Back"

我必须点击“接听”并以“1”回复下一个菜单。

我按照以下方式尝试AT命令

AT+CUSD=1,"*401*1*22#",15
AT+CUSD=1,"1",15

我收到了消息 -

+CUSD: 2,"Welcom to ---. You Will receive the menu shortly. Please exit",15
+CUSD: 1,"1 Bill Payments2 OthersReply with your choice",15

此处会话结束，我无法进入下一个菜单。

回复1后如何移动到下一个菜单？

Answer 1

AT + CUSD = 1，＆＃34; * 401 * 1 * 22＃＆＃34;，15

收到菜单后，选择如下。

  

1

并按ctrl + z