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Nothing falls through our
net.(c)
Preface Overview As we look at our Indiana Site, we see a line that connects to the LDC. This line represents our T1s. The T1s are carried by our Local Loop Provider to our long distance carrier (LDC). The LDC breaks the channels of the T1s into their parts and routes information where necessary. Some of the T1 is Frame Relay Data Networking that allows us remote access via the Wide Area Network (WAN) and compressed voice over frame for virtual seating and administration uses. This WAN creates the ability for Virginia to handle voice overflow, data storage and processing with personnel in Virginia, as needed by the Indiana Site. The other parts of the T1s go to the LDC phone system. The phone system carries calls from and to callers, customers and contractors. Inside the Indiana Site is our Adtran TSU, which breaks channels of one of the T1 where Frame relay resides and delivers Frame to the Cisco Router and Voice to the NEC Phone Switch. The Cisco Router then breaks the Compressed Voice Data out to the NEC Phone Switch and regular IP data to the LAN. |