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Software Configuration Guide for Cisco 2600 Series, Cisco 3600 Series, and Cisco 3700 Series Routers
OL-1957-04
Chapter4 Configuring Voice-over-IP
interface serial 0/0
clock rate 2000000
ip address 172.16.1.123
no shutdown
Router SLC Configuration
! Configure pots dial-peer 1
dial-peer voice 1 pots
destination-pattern +9...........
port 1/0/0
! Configure voip dial-peer 2
dial-peer voice 2 voip
destination-pattern +14085274000
session target ipv4:172.16.1.123
! Configure the voice port
voice port 1/0/0
connection plar 14085274000
! Configure the serial interface
interface serial 0/0
ip address 172.16.65.182
no shutdown
Configuring Direct-Inward Dialing on a BRI Port
The following example shows how to configure a BRI port for direct-inward dialing (DID). This
configuration allows the called number information from the ISDN Q.931 setup message to be used for
routing on an ISDN line.
In this example, a call comes in to router 1 on the BRI port. The DID information allows the router to
route the call based on the called number. If the called number is 2xxx, the call is routed to router 2000,
and if the called number is 3xxx, the call is routed to router 3000.
Figure4-5 illustrates the topology of this connection example.
Figure4-5 Configuring DID on a BRI Port
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