在 VoiceXML 中编写语法以匹配 # 个终止数字或 *1 或 *2
我正在编写 VoiceXML 应用程序，但遇到问题。该应用程序仅侦听 DTMF 音调。
用户输入确认号码，后跟#。他们还可以输入 *1 或 *2 与客户服务联系，或重新发送确认消息。
我在创建一个适用于此目的的语法时遇到了困难。我已经能够使用内置类型 digits?minlength=1 和 termchar=# 作为确认代码。我还能够创建一个语法，该语法本质上复制了内置的数字功能。
我无法让 *1 或 *2 功能工作！它们很特殊，因为它们没有终止字符。
有谁知道如何解决这个问题？这里掉头发了...... 谢谢大家。
I an writing a VoiceXML app and i am having a problem. The application listens for DTMF tones only.
The user enters a confirmation number followed by #. They can also enter *1 or *2 to speak to customer service, or resend the confirmation message.
I am having trouble creating a grammer that will work for this. I've been able to use the built-in type digits?minlength=1 and termchar=# just fine for the confirmation code. I've also been able to create a grammar that essentially duplicates the built digits functionality.
I can't get the *1, or *2 function to work! They are special as they have no termination char.
Does anyone have any clue how to approach this? Loosing hair here....
Thanks all.
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查看 SRGS 规范 中的示例。引脚示例接受 *9。
请注意，虽然规范中有此内容，但我发现一些 IVR 引擎未完全实现该规范。特别要注意 # 和 * 的内置假设。终止原因也可能有点不一致。
Take a look at this example from the SRGS specification. The pin example accepts *9.
Note, while this is in the specification, I've found some IVR engines that don't fully implement the specification. In particular, watch out for built-in assumptions for both # and *. Termination reasons can also be a bit inconsistent.