Public Interest Network Services Inc. &
Public Interest Telecom Inc.

Multiple Locations: Voice/data T1s with Managed Firewall Plus DSL

click to enlarge

Organizations with multiple locations can take maximum advantage of a PINS-provided network.

The diagram above illustrates an example of a company with an office in Manhattan, another on Long Island, and a warehouse in New Jersey.

The offices in New York City and Long Island are connected to the PINS Network Operations Center with one or more T1 local loops.

The PINS Network Operations Center is connected to multiple carriers on the Public Switched Telephone Network (PSTN) for voice calls, and is fully peered to the Internet backbone.

At the offices, an IP router, which can separate voice channels from data channels, is connected to the T1. The channels designated for voice are connected to the client's PBX telephone switch using a T-1 interface card, or converted to POTS (Plain Old Telephone Service) or Centrex lines. The T-1 channels designated for Internet access are connected to the computers on the Client's Local Area Network via an Ethernet port on the router.

The warehouse in New Jersey is connected to the PINS Network Operations Center with an economical DSL data circuit. In addition to data, this circuit carries voice calls using a Voice over Internet Protocol (VoIP) telephone that functions as an extension of the organization's main telephone system.

At the PINS Network Operations Center, all circuits are connected to a centrally managed firewall. This creates a Wide Area Network between all three locations. Even though miles separate the locations, the voice and data networks function as if everything was local. All voice communications between locations are "on net" and free of charge. All computers on the clients Local Area Network have easy access to each other. They also have access to, and protection from, the Internet.