
5-25
Cisco Catalyst 4000 Access Gateway Module Installation and Configuration Note
OL-3008-01
Chapter 5 Configuring the Voice Interfaces
Voice over IP Configuration Examples
Voice over IP Configuration Examples
This section describes how to configure voice network modules with recEive and transMit (E&M),
Foreign Exchange Office (FXO), and Foreign Exchange Station (FXS) interfaces for your AGM. Your
actual configuration procedures depend upon the topology of your network. You will need to customize
the following example scenarios to reflect your network topology.
The following VoIP configuration examples are included:
• FXS-to-FXS Connection Using RSVP, page 5-25
• FXO Connection to PSTN, page 5-27
• FXO Connection to PSTN Using PLAR Mode, page 5-28
FXS-to-FXS Connection Using RSVP
The following example shows how to configure VoIP for simple FXS-to-FXS connections.
In this example, a very small company that consists of two offices integrates VoIP into an existing IP
network. One basic telephony device is connected to the AGM AGLB-1. The AGM AGLB-1 is
configured for one POTS peer and one VoIP peer. Because one POTS telephony device is connected to
AGM AGLB-2, it is also configured for one POTS peer and one VoIP peer. In this example, only the
calling end (AGM AGLB-1) is requesting RSVP.
Figure 5-2 illustrates the topology of this FXS-to-FXS connection example.
Figure 5-2 FXS-to-FXS Connection Example
Configuration for AGM AGLB-1
The following example shows the AGLB-1 configuration:
hostname aglb-1
! Create voip dial-peer 10
dial-peer voice 10 voip
! Define its associated telephone number and IP address
destination-pattern +4155264002
sess-target ipv4:10.0.0.2
! Request RSVP
req-qos guaranteedDelay
Router
AGLB-1
39375
Dial peer 1
POTS
Dial peer 2
POTS
128 kbps
128 kbps
Serial port
2/0
Voice port
1/0
Voice port
1/0
128 kbps
IP cloud
Router
AGLB-2
Serial port
2/0
V V
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