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Cisco VG224 Voice Gateway Software Configuration Guide
OL-5005-01
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 nonvolatile random-access memory (NVRAM), so the changes are not lost if there is a system reload
or power outage. For example:
Router# 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]
Router#
Upgrading to a New Cisco IOS Release
To install or upgrade to a new Cisco IOS release, see How to Update/Upgrade Cisco IOS Software.
Cisco VG224 Deployment Scenario
Figure 1-3 shows a typical deployment scenario for the Cisco VG224 voice gateway.
Figure 1-3 Analog FXS User Interfaces with Metro Ethernet Interface
Where to Go Next
Now that you have learned some Cisco IOS software basics, you can begin to configure the router using
the CLI.
Remember that:
• You can use the question mark (?) and arrow keys to help you enter commands.
• Each command mode restricts you to a set of commands. If you have difficulty entering a command,
check the prompt and then enter the question mark (?) for a list of available commands. You might
be in the wrong command mode or using the wrong syntax.
VG224
RJ-21
Ethernet
Distribution
panel
103038
Analog
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