1
C
ONNECTING
TO
THE
D
EVICE
This chapter describes the features of the BSGX4e device and its role in an IP
network. It also describes how to connect to the device and how to set up remote
administrative services.
The BSGX4e is an integrated device, that contains a broad set of networking
functionality for voice and data in a single unit:
It acts as a full-featured router with VoIP, QoS, and advanced security
capabilities.
It slots into the existing network, connected by an Ethernet cable to the WAN
access router.
It enables the effective provisioning of converged VoIP and data services.
It provides session control and service monitoring of VoIP devices on the LAN,
protects against malicious packet attacks, and provides call admission control.
The BSGX4e includes an Foreign Exchange Station (FXS) port that can provide an
analog device with access to VoIP service.
The BSGX4e includes an Foreign Exchange Office (FXO) port that can provide
backup access to the Public Switched Telephone Network (PSTN).
Network Role
Figure 1 shows a possible IP network layout with an BSGX4e unit that connects a LAN
to the WAN. The figure illustrates the following:
The BSGX4e unit can reference servers on the WAN for the devices on its LAN.
LAN devices can include VoIP phones using SIP or MGCP protocols.
Through its FXO port, you can connect the BSGX4e device to a CO line (PSTN) that
acts as a lifeline if VoIP service is not available.
The unit can provide a VoIP connection for an analog device (such as a phone or
fax machine).
Use a console to locally configure and monitor the unit.
