Angel.com provides interactive voice response systems for what it calls "on-demand customer experience solutions." The company's platform specifically addresses the retail, pharmaceutical, financial, high tech, healthcare, telecommunications and travel industries. However, the Angel OutBound API provides tools so that any developer can programatically instruct Angel.com to place phone calls on your behalf.
The API supports both SOAP and XML-RPC protocols and returns results in XML.
The following is a list of how-to and tutorial content that matched your search term. ProgrammableWeb's how-to content comes from two sources; full-blown tutorials that we publish ourselves and other highly relevant tutorials that we find elsewhere on the Web. This list represents on combination of both tutorial types and if you go to ProgrammableWeb's API University, you'll not only be able to find more, they are organized based on your role (API providers or developers who consumes APIs). If you know of a tutorial that would be of interest to the ProgrammableWeb community, we'd like to know about it. Be sure to check our guidelines for making contributions to ProgrammableWeb.