问题
I'm building a very simple voiceXML app to allow people to make recordings. But first, I need to authenticate callers by phone number and/or PIN.
Can I call a webservice from voiceXML? Looks like I want to use the voiceXML "data" element to call my webservice. However, I need to dynamically calculate the URL, and it looks like it only takes a static string as the "src" parameter.
I'm new to voiceXML, so pointing me to a good tutorial would help too! I'm working from the voxeo documentation.
回答1:
you're right about needing the data element, and i'd have a look at the screxpr attribute of that element.
http://www.vxml.org/frame.jsp?page=data.htm
pretty self-explanatory:
<data srcexpr="'http://example.com/?key=' + myValue" />
来源：https://stackoverflow.com/questions/3102546/how-can-i-call-a-webservice-from-voicexml