Cisco 1751 Schnellstart-Handbuch - Seite 21

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Cisco 1751 Schnellstart-Handbuch
Table 11
Remote Location
West
Enter the following information on the East router to create the dial-peer configuration given in
Table
East(config)# num-exp 5.... 1408555....
East(config)# dial-peer voice 801 voip
East(config-dial-peer)# destination-pattern 1408555....
East(config-dial-peer)# session target ipv4:192.168.19.27
These commands are summarized in
Figure 17
408 555-xxxx
Other Routers on the Network
If the path between endpoints of a voice call travels through intermediate routers, configure those routers
for VoIP traffic, as described in the section
You need to configure POTS or VoIP dial peers on an intermediate router only if that router also has voice
devices attached to it.
Checking FXS Configuration
If you configured VoIP dial peers on your router by following these examples, you can place calls from
that router to telephones on the remote routers (using just the extension if you configured number
expansion). If you have trouble placing calls, ping the remote router to make sure you have IP
connectivity, or use the show dial-peer voice command to verify that the data you configured is correct.
Refer to the section
Note
of voice connections.
Configuring FXO Interfaces
FXO interfaces provide a gateway from the VoIP network to the analog PSTN or to a PBX that does not
support E&M signaling so that users can reach telephones and fax machines outside the VoIP network.
Figure 18
78-11259-05
East Router Remote Dial Peers with Wildcards
Telephone Number
408 555-xxxx
11:
East Router Configured for Remote Dial Peers
192.168.19.27
West
Destination
"Tuning Parameters for Real-Time Voice Traffic"
shows a typical FXO gateway attached to the West router.
IP Address
Dial-Peer Tag
192.168.19.27 801
Figure
17.
IP cloud
East
dial-peer voice 801 voip
destination-pattern 1408555....
session target ipv4:192.168.19.27
num-exp 5.... 1408555....
Source
"Configuring FXS Interfaces"
Cisco 1751 Voice-over-IP Quick Start Guide
Configuring Voice-over-IP
earlier in this guide.
if you need to improve the quality
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