Dialogic 6.2 Benutzerhandbuch

The Bfv API Functions

November 2009

For voice applications, infopkts provide an easy means to build

sophisticated interactive voice systems. Using infopkts, a voice

application can create a master prompt file that builds all of the

system's prompts out of short phrases.

This scheme:

Reduces the amount of disk space needed for storage.

Enables the application to build new prompts as changing

demands on the system dictate.

Simplifies the development of multilingual systems that can

translate recorded prompts to other languages on-the-fly.

For fax applications, infopkts provide a flexible means to transmit a

complex, computer-generated fax document.

A fax transmission consists of one or more documents. A document

consists of one or more pages containing the document parameters,

agreed upon by two communicating fax machines according to the

T.30 protocol, that do not change. A page consists of one or more

strips of data, converted from their original format to the established

document format for transmission.

To a fax machine, a document is a simple object with three

parameters: vertical resolution, length, and width. To a computer, a

document is often more complex.

For example, fax applications might require the transmission of

ASCII data in fax format. The fax module converts the ASCII data to

G3 format in real-time. A file header and signature, already in

G3 fax format, can accompany the ASCII data. The infopkt structure

makes it easy to send a document of this type because it organizes

fax and ASCII data into a single structure for transmission and

reception.

The Bfv API defines and supports the infopkt types described on the

following pages: