Cisco Unified Customer Voice Portal: Building Unified Contact Centers

HTTP Connection

In a typical HTTP communication transaction, the HTTP client is always the party that initiates the request to communicate with an HTTP server. It accomplishes this by starting up an HTTP handshake via a TCP socket connection request to the HTTP server. After the server grants the connection request, a connection between the HTTP client and the HTTP server is established. The HTTP client sends a request, usually in the form of a VXML document, or an audio prompt file fetch, on behalf of the application to the server. However, as soon as the client receives the response from the HTTP server, the HTTP client closes the TCP socket connection.

Sounds good, doesn’t it? Not so fast. Imagine what happens to the performance of a VXML ...