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Dial-up Data Configuration 1 – 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 the Office Module, which is connected to a Remote Access Server (RAS) via an RS-232
cable. The Remote Access Server terminates the actual PPP connection.
LAN
PC with Remote Dial-
up Networking using a
Bitsurfr Modem
Dialing to the RAS
RAS using Bitsurfr Modem
RS232
RS232
ISDN
Office Module
Remote Module
BRI
BRI
(Dial-Up Data)
(Dial-up Data)
Use Ch1
RJ11
PBX
Analog Device
Digital Phone
Figure 7: RAS through the Office Module
EXTender 3000 System Administrator's Guide (Definity)
Data Communication Installation Topologies
Page 67
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