1-6
Cisco VG202 and Cisco VG204 Voice Gateways Software Configuration Guide
OL-16191-01
Chapter 1 Understanding Interface Numbering and Cisco IOS Software Basics
Upgrading to a New Cisco IOS Release
Saving Configuration Changes
You need to enter the
copy running-config startup-config
command to save your configuration
changes to NVRAM, so the changes are not lost if there is a system reload or power outage. For example:
VG#
copy running-config startup-config
Building configuration...
It might take a minute or two to save the configuration to NVRAM. After the configuration has been
saved, the following appears:
[OK]
VG#
Upgrading to a New Cisco IOS Release
To install or upgrade to a new Cisco IOS release, see
Maintaining System Memory
in the
Cisco IOS
Configuration Fundamentals Configuration Guide, Release 12.2
.
Note
To simplify network operations and management of Cisco IOS software migration, see the
Basics of a
Successful Cisco IOS Software Migration
document.
Cisco VG202 and Cisco VG204 Voice Gateways Deployment
Scenario
Figure 1-5
shows a typical deployment scenario for Cisco VG202 and Cisco VG204 voice gateways.
Figure 1-5
Analog FXS User Interfaces
1
Ethernet
2
VG204 voice gateway
3
RJ-11 cables
4
Analog telephones
272489
2
1
3
4
