4.1.   Connecting to External Equipment

There are two possible hardware configurations for the IP Gateway (Global Call) demo:

• Intel® NetStructure™ IP board(s) with on-board NIC and a PSTN connection on the front end
• Intel® NetStructure™ IP board(s) with on-board NIC connected to an Intel® NetStructure™ DM/V-A series board

The following diagrams illustrate the possible hardware configurations.

Figure 1.  Hardware Configuration with Onboard NIC and PSTN Front End

Figure 2.  Hardware Configuration with Onboard NIC and separate PSTN board

The IP Gateway (Global Call) demo allows you to connect to gateways on an IP network and establish voice calls via the IP network. It also allows you to connect to H.323 terminals on the IP network and connect a call from the terminal to a telephone via one of the gateways. Figure 3 shows a typical topology for demonstrating the capabilities of the IP Gateway (Global Call) demo. Note that the two PBXs that are shown can be a single PBX. Also note that more than one PSTN line can be connected to a single gateway.

Figure 3.  Typical Topology

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