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BCM 4.0 Networking Configuration Guide
Chapter 57
Data networking overview
The BCM is a converged voice product, and can be connected to virtually any data network, to
provide Voice over Internet Protocol (VoIP) support in either a Local Area Network (LAN) or
Wide Area Network (WAN) environment. The BCM is also available with an integrated
Broadband Ethernet or ADSL Router, which is intended to provide basic data networking and
services, as well as Virtual Private Network (VPN) connectivity for small sites. Refer to “Virtual
Private Networks (VPN)” on page 649 fore more information. With the router, the BCM can
handle all data networking needs, including both VoIP and basic IP networking. The BCM is also
available without a router, to provide VoIP capabilities to networks that already have an existing
IP network.
What is data networking?
On the BCM, data networking refers to both standard IP data networks, as well as VoIP. These two
types of networks are closely intertwined, and connect a wide range of IP devices - including IP
telephones and computers - with the BCM and with external networks. The BCM with router can
also handle all routing requirements.
For an more information about setting up networks “System telephony networking overview” on
page 41.
About the BCM VoIP capability
The BCM provides VoIP functionality both within a LAN (Local Area Network), and across a
WAN. It can contain IP telephones, which act similar to a traditional phone, but send their signals
across data networks in the form of IP packets. The BCM can also contain IP trunks which connect
offices together across an IP network.
For more information about VoIP refer to “VoIP overview” on page 397.
Network routing
The BCM is available with and without an internal router. With the router, it can handle all
external connections necessary for a data-network, as well as control security on these
connections. The standalone version of the BCM does not handle routing, but is suitable for IP
networks where a router is already in place.
Configuring the BCM with data networks
To configure the BCM to work with a data network, go through each of the following steps:
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