Specifications
Table Of Contents
- Software Configuration Guide
- Contents
- Preface
- Understanding Interface Numbering and Cisco IOS Software Basics
- Understanding Interface Numbering
- Understanding Cisco IOS Software Basics
- Upgrading to a New Cisco IOS Release
- Where to Go Next
- Using the Setup Command Facility
- Before Starting Your Router
- Using the setup Command Facility
- Configuring Global Parameters
- Configuring Interface Parameters
- Completing the Configuration
- Where to Go Next
- Configuring with the Command-Line Interface
- Configuring the Host Name and Password
- Configuring 1-Port and 2-Port Ethernet Interfaces
- Configuring Fast Ethernet Interfaces
- Configuring Asynchronous/Synchronous Serial Network Modules or WAN Interface Cards
- Configuring 16-Port and 32-Port Asynchronous Network Modules
- Configuring ISDN BRI WAN Interface Cards
- Configuring T1 and E1 Interfaces
- Configuring T1 (FT1) WAN Interface Cards
- Configuring ATM Interfaces
- Configuring Inverse Multiplexing for ATM Interfaces
- Configuring Analog Modem Interfaces
- Configuring Wireless Multipoint Interfaces
- Checking the Interface Configuration
- Configuring 1-Port ADSL WAN Interface Card
- Configuring the NM-AIC-64, Contact Closure Network Module
- Configuring the 1-Port HSSI Network Module
- Configuring the Compression Network Module for the Cisco 3600 Series Routers
- Configuring the Digital Modem Network Module for the Cisco 3640 Router
- Prerequisites
- Configuration Tasks
- Configure the E1/T1 Network Module for ISDN PRI
- Configure the ISDN D-Channel Serial Interfaces
- Configure the Loopback Interface
- Configure the LAN Interface
- Create the Group Asynchronous Interface
- Configure the ISDN Dialer Interface
- Configure the Default IP Pool Information
- Configure Modem Lines for Dial-In and Dial-Out
- Configuration Example
- Configuring 1-Port G.SHDSL WAN Interface Card
- Saving Configuration Changes
- Where to Go Next
- Configuring Voice-over-IP
- Voice-over-IP Prerequisites
- Configuring the Voice Interface
- Voice-over-IP Configuration Examples
- Where to Go Next
- Configuration Examples
- Cisco 2600 Series Router Configuration Example
- Cisco 3631 Router Configuration Example
- Cisco 3725 Router Configuration Example
- 1-Port ADSL WAN Interface Card Configuration Examples
- NM-AIC-64, Contact Closure NetworkConfiguration Examples
- Cisco 3640 Central Site Configuration to Support ISDN and Modem Calls
- Formatting the Compact Flash Memory Cards
- Using the ROM Monitor
- Index

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Software Configuration Guide for Cisco 2600 Series, Cisco 3600 Series, and Cisco 3700 Series Routers
OL-1957-03
Chapter 4 Configuring Voice-over-IP
Router SLC Configuration
hostname saltlake
!Configure pots dial-peer 1
dial-peer voice 1 pots
destination-pattern +569....
port 1/0/0
!Configure pots dial-peer 2
dial-peer voice 2 pots
destination-pattern +569....
port 1/0/1
!Configure voip dial-peer 3
dial-peer voice 3 voip
destination-pattern +527....
session target ipv4:172.16.1.123
!Configure the E&M interface
voice-port 1/0/0
signal immediate
operation 4-wire
type 2
voice-port 1/0/0
signal immediate
operation 4-wire
type 2
!Configure the serial interface
interface serial 0/0
description serial interface type dte
ip address 172.16.65.182
no shutdown
Note PBXs should be configured to pass all DTMF signals to the router. Cisco recommends that you do
not configure “store-and-forward” tone.
Note If you change the gain or the telephony port, make sure that the telephony port still accepts DTMF
signals.
PSTN Gateway Access Using FXO Connection
The following example shows how to configure VoIP to link users with the PSTN gateway using an FXO
connection.
In this example, users connected to Router SJ in San Jose, California can reach PSTN users in Salt Lake
City, Utah via Router SLC. Router SLC in Salt Lake City is connected directly to the PSTN through an
FXO interface.
Figure 4-3 illustrates the topology of this connection example.