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Dial-up Data Configuration 2 – TA Modem Dial-Up Networking
This configuration uses the Remote Module to provide complete digital phone functionality on one ISDN B
Channel, while the other B Channel is dedicated to providing remote access to the corporate network (LAN).
The Remote Module acts as an ISDN modem or terminal adapter and allows the remote PC to establish a
PPP connection using Windows 95 Dial-Up Networking or some other remote networking client. The call is
terminated by a Remote Access Server (RAS) via an RS-232 cable. The Remote Access Server terminates
the actual PPP connection.
LAN
RAS
Office Module
BRI
(Serial Data)
PBX
Figure 8: RAS using the Remote Module as a Terminal Adapter (TA)
Page 68
PC with Remote Dial-
up Networking using a
Bitsurfr Modem
Dialing to the RAS
BRI/PRI
ISDN
Remote Module
BRI
EXTender 3000 System Administrator's Guide (Definity)
Data Communication Installation Topologies
RS232
Use Ch2
(Dial-up Data)
Use Ch1
Digital Phone
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