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As mentioned at the beginning of this chapter, T1 and E1 provide two-way service over telephone-switching networks. This section describes the tasks that are required to get ISDN PRI up and running.
PRI configuration tasks are as follows:
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Specify the correct PRI switch type that the router interfaces with at the provider’s
CO.
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Specify the T1/E1 controller, framing type, and line coding for the provider’s facility.
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Set a PRI group timeslot for the T1/E1 facility and indicate the speed used.
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Identify the interface that you will configure to act with
DDR.
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Lab
Activity |
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Given
a Central site Cisco-IOS router with ISDN PRI capability and
branch office site Cisco-IOS routers with ISDN BRI
capability, configure all routers so that you can place an
ISDN call between your three company sites.
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