The WWW node can facilitate communication with external resources using the REST or SOAP protocols. In other words, you can use the WWW node if you want the IVR to do things like retrieve, send, create, or update information by communicating with resources outside the platform.
The WWW node is particularly useful because you can use input supplied by callers. For example, you might use a Get Input node to retrieve account numbers from callers. You can then use the WWW node to communicate with an external resource regarding those accounts.
Depending on which type of web service you want to integrate, you’ll be required to supply a variety of additional information. Keep in mind that using the WWW node requires a working knowledge of API integration.