Cisco VG400 User Manual

Undoing a Command or Feature
If you want to undo a command you entered or disable a feature, enter the keyword no before most commands.
For example, no ip routing.
Saving Configuration Changes
Enter the copy running-config startup-config command to save your configuration changes to nonvolatile
random-access memory (NVRAM). Doing so ensures that 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 screen displays the following:
[OK]
Router#
Upgrading to a New Cisco IOS Release
To install or upgrade to a new Cisco IOS release, see How to Update or Upgrade Cisco IOS Software .
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 be using the wrong syntax.
• To disable a feature, enter the keyword no before the command. For example, no ip routing.
• Save your configuration changes to NVRAM so the changes are not lost if there is a system reload or
power outage.
Proceed to Configuring the Host Name and Password, on page 5 to begin configuring the router.
Cisco VG400 Voice Gateway Software Configuration Guide
3
Understanding Interface Numbering and Cisco IOS Software Basics
Undoing a Command or Feature

Cisco VG400 Specifications

General

Product Type	Analog Voice Gateway
Protocols	SIP, MGCP, H.323
Operating Temperature	32 to 104°F (0 to 40°C)
Humidity	10% to 90% non-condensing
Voice Ports	8 FXS ports
Security	TLS, SRTP, HTTPS
Power Supply	External AC power adapter
Mounting	Desktop or wall-mountable
Storage Temperature	-4 to 149°F (-20 to 65°C)
Compliance	FCC, CE
Network Interfaces	2 x 10/100/1000 Ethernet ports

Summary

Understanding Interface Numbering and Cisco IOS Software Basics

Understanding Cisco IOS Software Basics

Learn essential Cisco IOS software concepts for router configuration, saving time during initial setup and operations.

Getting Help with Cisco IOS Commands

Utilize question mark (?) and arrow keys to find available commands and command variables for efficient CLI usage.

Command Modes in Cisco IOS

Understand different Cisco IOS command modes (User EXEC, Privileged EXEC, Global Configuration, Interface Configuration) and their prompts.

Saving Configuration Changes

Learn to save running configuration to NVRAM using the 'copy running-config startup-config' command to prevent data loss.

Configuring with the Command-Line Interface

Configuring Host Name and Password

Set an encrypted password and configure a hostname for your Cisco VG400 to distinguish it and prevent unauthorized changes.

Verifying Host Name and Password

Verify the configured host name and encrypted password using 'show config' command and re-entering privileged EXEC mode.

Configuring Gigabit Ethernet Interfaces

Learn to configure Gigabit Ethernet interfaces, including enabling the interface and specifying IP routing via CLI.

Configuring Voice Ports

Prerequisite for Voice Port Configuration

Establish a working IP network before configuring voice ports on the Cisco VG400.

Configuring Voice Ports

Learn to configure analog FXS voice ports, including loop-length, ren, dc-offset, and cm-current-enhance commands.

Cisco IOS Bulk Configuration for Voice Ports

Utilize optional bulk-configuration mechanisms for voice-port and voice dial peer configuration to save time.