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ISDN Software Reference for Linux and Windows
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station set device to and from the SCbus. BRI/SC boards can be used in either
a Windows or a LINUX operating environment.
The Dialogic BRI/SC protocol implementations comply with the North
American standard ISDN BRI, Euro-ISDN protocol for BRI, and the INS64
standard used in Japan. See Section 2.3. Dialogic ISDN Protocol Support for
a listing of currently supported BRI protocols.
• The BRI/2 boards emulate two standard BRI station sets with display, and are
designed to support the Euro-ISDN protocol. The BRI/2 boards provide
analog voice processing, via the Dialogic Voice Functions (see Note 1 below)
and the Dialogic ISDN API, and support many enhanced ISDN features. In
addition, BRI/2 boards can facilitate four instances of Dialogic DSP-based
Group 3 Fax (also referred to as DSP Fax, see Note 2 below) and provide
ISDN B channel data communications. BRI/2 boards are currently supported
only under the Windows operating system.
NOTES: 1.
For information on using Voice Functions, see the Voice Software
Reference – Features Guide for the appropriate operating system.
2. For information on using DSP Fax with the BRI/2, see the Fax
Software Reference the appropriate operating system.
The Dialogic BRI/SC and BRI/2 boards provide network access via the ISDN
Basic Rate Interface (BRI). The BRI/SC boards can also function as a digital
station interface, enabling direct access to BRI station sets (telephones) from PC-
based computer telephony (CT) systems, and eliminating the need for local switch
integration.
The BRI/SC boards may also be used for connecting voice processing
applications to PBX or Public Switched Telephone Network (PSTN) BRI access
lines.
2.1.1. Features of BRI
BRI offers advantages or access to features not available on PRI. For example,
many ISDN PBX Primary Rate products are designed as terminal equipment (TE)
for connection to the central office, and cannot provide network-side access to
other terminal equipment. The BRI/SC or BRI/2 board can be used to connect to a
PBX.