Voip Configuration Examples; Fxs-To-Fxs Connection; Configuration Examples - Cisco 2431 - IAD Router Software Configuration Manual

VoIP Configuration Examples

The Cisco IAD is now configured to boot in the new configuration.
VoIP Configuration Examples
The actual VoIP configuration procedure you complete depends on the topology of your voice network.
The following configuration examples give you a starting point. Of course, you need to customize these
configuration examples for your own network topology.
Configuration procedures and examples are supplied for the following scenarios:
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FXS-to-FXS Connection

The following example shows how to configure VoIP for simple FXS-to-FXS connections over
channelized T1/E1s. In this example, a very small company, consisting of two offices, has decided to
integrate VoIP into its existing IP network. One basic telephony device is connected to IAD-1; therefore,
IAD-1 has been configured for one POTS peer and one VoIP peer. Routers RLB-w and R12-e establish
the WAN connection between the two offices. Because one POTS telephony device is connected to
IAD-2, that Cisco IAD has also been configured for only one POTS peer and one VoIP peer.
Figure 4-1
Figure 4-1
Voice port
Dial peer 1
POTS
Cisco IAD2430 Series Integrated Access Devices Software Configuration Guide
4-4
FXS-to-FXS Connection
Linking PBX Users with Digital E&M Trunk Lines over T1/E1 CAS
PSTN Gateway Access Using an FXO Connection
PSTN Gateway Access Using an FXO Connection in PLAR Mode
illustrates the topology of this FXS-to-FXS connection example.
Channelized T1/E1 FXS-to-FXS Connection
Serial port
1/0
MLPPP over serial
Serial port
2/0
0/0
IAD
IAD-1
IP cloud
1/3
Router
128 kbps
RLB-w
Chapter 4 Configuring Voice over IP
Serial port
1/3 1/0
Router
MLPPP over channelized T1
R12-e
Serial port
1/0:0
IAD
IAD-2
Voice port
2/0
Dial peer 2
POTS
OL-4306-03