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Module 6: Billing

CroSS7 Data Stream

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Local Interconnection Services (LIS)

How does CenturyLink keep track of all of the calls? Good Questions!

          CroSS7 Data Stream
CenturyLink uses a system that is dedicated to recording your call information for the purpose of tracking.

This system is called Signaling System 7 (SS7). This system generates records of all local and IntraLATA toll calls to and from the CLECs. Then the information is recorded using the CroSS7 data stream.

How does CroSS7 work?

Letís take a look.
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