Greetings,
We are using CVP studio's out of the box Web Service element to integrate with a web service. When a hard coded data is used to send data as parameter , web service executes fine, however when a substitution tag such as (Data.Session.phone} is used to pass data to the web service element , the tag is replaced with the {0} and hence web service element is not executed properly.
Attached (StudioConfig.jpg) show the web service element configuration
"deployedConfig.jpg" shows the confgigurations of the web service element after deployment
"error.jpeg" shows the request as it is generated by CVP , it looks like the CVP VXML server does not substitute the parameters with values at run time