Dialogic 6.2 - Manual (Page 46)

The Bfv API Functions
November 2009 46
User-Defined Infopkts
Contain a header (the document’s title, the subject of the document,
or the total number of pages that the document contains) and
user-defined information (document summary and statistics, etc.)
useful to an application. When the Bfv API encounters these infopkt
types, it ignores them. See the BfvInfopktUser function in Volume
4, Fax Processing, Bfv API Reference Manual. They are:
INFOPKT_USER0_USER1...._USER9
Infopkt containing a header and storage for user application
information. A maximum of ten user-defined infopkt types
(numbered 0 to 9) are included in an infopkt stream.
INFOPKT_ANNOTATION
Contains header and ASCII text, but is otherwise identical to the
user types described above.