The Vesp_dip installed on the Avaya IR system provides the means to access Avaya Computer Telephony services such as data retrieval and telephone call transfers. It enables the Avaya IR system to interact transparently with Avaya Computer Telephony for IC across the network.
As illustrated below, Avaya IR applications invoke Vesp_dip external functions to communicate with Avaya Computer Telephony. Requests for Avaya Computer Telephony services pass through a TCP/IP connection into the VOX Server which interprets the DIP commands. The VOX Server passes the application's requests to the appropriate Avaya Computer Telephony components and returns the responses in a form that the Avaya IR system can comprehend. The commands issued to the VOX Server are described in detail in the Avaya Interaction Center VOX Server Programmer's Guide.
The functions contained in the DIP are described in the Avaya IVR Designer Help.