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Here are a few definitions the provide a foundation for more detailed information contained under the topics in the navigation menu located at the left of this page:

• T1: A T1, or T-1 line, is a digital transmission circuit standardized in the United States, Canada, and Japan that consists of twenty-four 64 Kbps channels that use using pulse code modulation (PCM) signals with time-division multiplexing (TDM) at an overall rate of 1.544 million bits per second (Mbps). T1 lines may use copper wire, optical, and wireless media.

• MPLS (Multi-Protocol Label Switching): Multiprotocol Label Switching (MPLS) is a standardized data switching technology that optimizes network traffic flow and eases management of data networks. MPLS carves specific paths data packets that are identified by a label that saves the time needed for a router to look up the address to the next node in order to forward the packet. MPLS works with the Internet Protocol (IP), Asynchronous Transport Mode (ATM), and frame relay network protocols. MPLS allows most packets to be forwarded at the layer 2 (switching) level rather than at the layer 3 (routing) level and makes it easy to manage quality of service (QoS).