Developers who build voice applications using Plum’s platform serve VoiceXML code from their web servers to Plum data centers in Massachusetts, Virginia and England. Plum’s voice platform works like a web browser: it interprets code that provides instruction to our IVR systems. The code tells the platform what prompts to play to the caller, when to listen for input, and collects and exchanges data with a caller by using standard data transfer methods.
To provide callers with instructions about how to navigate through an IVR application, audio prompts are typically recorded and serve as the caller user interface. These prompts are typically large audio files that are transferred over the Internet from a company’s web server to the Plum platform.
To remove possible latency associated with pulling large audio files over HTTP, the Plum platform supports caching. Caching lets developers store audio files on the Plum platform to eliminate the need to transfer large files each time the IVR accesses a VoiceXML script.
For more information on caching, see here: http://www.plumvoice.com/docs/hosting/cache.html
