Cisco VG224 Software Guide - Page 19

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 Ethernet VG224 RJ-21 Analog telephones 103038 Distribution panel 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. OL-5005-01 Cisco VG224 Voice Gateway Software Configuration Guide 1-5