NEC NEAX NDA-24349 - Manual (Page 334)

Chapter 15 Integrated Services Data Network (ISDN)
Page 15-18 NEAX2000 IPS Request for Proposal (RFP) Reference Guide
NDA-24349, Issue 4
ISDN Basic Rate Interface (BRI)
NEAX 2000 IPS systems equipped with Basic Rate Interface (BRI) provides the user
with a vehicle for circuit switched data at rates of 64 or 128 kbps to the desktop. ISDN
BRI connects BRI terminals (stations) to the PBX. ISDN PRI is used to connect the PBX
to the public network. Circuit switched data is the focus of the NEAX2000’s Basic Rate
Interface. Features such as Group Four Fax, video conferencing, and data calls are the
main objective of BRI on the NEAX2000 IPS.
Applications
The NEAX2000 IPS supports National ISDN - 1 and AT&T 5ESS specifications for Basic Rate
Interface.
ƒ Desktop Video Applications
From the desktop, users can place and receive 128 K video conference calls .
ƒ Video Conferencing for large conference rooms or classrooms.
Using an I-MUX to receive 3 BRI ports, a bandwidth of 384 kbps is possible. This provides good quality
video for large conference rooms.
I-MUX Video CODEC
PSTN
Video CODEC
BRI x 3
PRI
BRI x 3
I-MUX
PSTN
Desktop Video
NEAX2000 IPS
BRI PRI
BRI
NT- 1
Desktop Video