H3C VG Series User manual

Operation Manual – Getting Started
H3C VG Series Voice Gateways Table of Contents
i
Table of Contents
Chapter 1 Overview.......................................................................................................................1-1
1.1 Introduction to Voice Gateway...........................................................................................1-1
1.2 VG Feature List..................................................................................................................1-3
Chapter 2 Fundamental Configuration........................................................................................2-1
2.1 Setting up Configuration Environment...............................................................................2-1
2.1.1 Setting up Local Configuration Environment through the Console Port.................2-1
2.1.2 Setting up the Local or Remote Configuration Environment by Using Telnet ........2-7
2.2 Command Line Interface (CLI) .......................................................................................... 2-9
2.2.1 CLI Views................................................................................................................2-9
2.2.2 CLI Online Help..................................................................................................... 2-11
2.2.3 CLI Error Information.............................................................................................2-12
2.2.4 Displaying History Configuration...........................................................................2-12
2.2.5 CLI Editing Functions............................................................................................2-13
2.2.6 CLI Display Functions...........................................................................................2-13
2.2.7 Shortcut Keys........................................................................................................2-14
2.3 Login Security Management............................................................................................2-14
2.3.1 Configuring a User................................................................................................2-14
2.3.2 Terminal Security Features...................................................................................2-16
2.3.3 Configuring Login Authentication and Authorization............................................. 2-16
2.4 Basic System Configuration.............................................................................................2-18
2.4.1 Basic System Configuration and Management.....................................................2-18
2.4.2 Displaying the Statistics of VG..............................................................................2-19
2.5 Ethernet Configuration.....................................................................................................2-20
2.5.1 Configuring Ethernet Interface.............................................................................. 2-20
2.5.2 Displaying and Debugging Ethernet Interface ......................................................2-24
2.5.3 DHCP Client Configuration Example ....................................................................2-25
2.6 Default Route Configuration ............................................................................................2-25

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H3C VG Series Voice Gateways Chapter 1 Overview
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Chapter 1 Overview
1.1 Introduction to Voice Gateway
H3C VG Voice Gateway (hereinafter referred to as VG), developed by Huawei-3Com
Technology Co., Ltd. (hereinafter referred to as Huawei-3Com) for industrialand SOHO
(small office/home office) users, is a new-generation access device which supports
integration of voice and fax.
VG implements the access of voice or fax signals and converts them into digital signals.
It then encapsulates these digital signals into IP packets and transfers them to IP
network via the Ethernet interfaces.
The cost-effective VG supports multiple IP telephony attributes, for example, voiceover
IP (VoIP), fax over IP (FoIP), call control, resource management, maintenance and
management. It supports diversified codec types and can obtain IP address as a
Dynamic Host Configuration Protocol (DHCP) Client. .
VG uses ITU-T Recommendation H.323, high-performance DSP chips and
coding/decoding algorithm of high compression ratio. It also supports echo cancellation,
silence suppression, comfortable noise, jitter buffer. These measures, combined with
security and QoS attributes, can guarantee transmission quality of voice and fax
services over IP network.
The VG supports both normal and fast connection modes. With tunneling technology, it
achieves out-of-band transmission of DTMF (dual-tone multi-frequency) code. The VG
also provides busy tone detection, dedicated line dial, as well as some peculiar
services, including do-not-disturb, call forwarding on busy, alarm call service, group line
access, etc.
Currently VG provides Ethernet interfaces, FXS interfaces, FXO interfaces and E1VI
trunk interfaces, which can connect with common phone sets or Private Branch
Exchanges (PBX) or Local Area Network (LAN) or WideArea Network (WAN).
A typical networking of VG is illustrated in Figure 1-1.

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Telephone
VG
Fax
Internet
Telephone Fax
VG
Figure 1-1 Typical networking of VG

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1.2 VG Feature List
Table 1-1 VG feature list
Functional
module Attributes
IP voice
Supports silence suppression, echo cancellation,
comfortable noise, jitter buffer and volume turning.
Supports special PBX functions (do-not-disturb,
call forwarding on busy, unconditional call
forwarding, alarm call service, group line access).
Supports fast connection and tunneling function.
Supports caller identification display (CID).
Supports voice communication via Loopback
interfaces.
Supports manual detection and auto detection on
busy tone.
Supports such policies as PSTN backup and GK
backup.
Supports static, dynamic and hybrid VoIP routing
policies.
Supports fast and normal transceiving of voice
and data packets.
Fax
In compliance with ITU-T Recommendations T.30
and T.38.
Multiple fax parameters can be customized.
Supports fax communication over IP network.
Call control
protocol H.323
Voice CODEC
mode G.711 A, G.711U, G.723r53, G.723r63, G.729A, and G.729r8
Voice
RADIUS
Supports voice RADIUS authentication,
authorization and accounting.
Supports prior authentication of local voice users.
Supports user authentication based on
account/password, caller number and voice caller
number process.
Supports one-stage dialing and two-stage dialing.
Supports interworking with RADIUS servers of
various types.
Voice
attributes
GK Client Serves as GK client for exchanging RAS
messages with GK server
Link layer
protocol LAN Supports Ethernet_II and Ethernet_SNAP frame
structure.
In compliance with IEEE 802.2 and IEEE 802.3

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Functional
module Attributes
IP service Dynamic ARP and static ARP.
IP address management.
IP
performance Supports IP fast forwarding.
IP routing Supports static route.
Filtering with
firewall Supports standard and extendedACL.
Network layer
protocol
Data security Supports terminal access control protection
(hierarchical user protection and login
authentication).
Configuration
management
Supports local and remote configuration via
Console port or using Telnet.
Supports maintenance and management in Web
interface and CLI mode.
Displays prompt and help information in both
Chinese and English.
System
management Supports uploading, downloading and configuring program files using XModem, FTP and TFTP.
Network
management Supports SNMP v1, v2 and v3.
Maintenance
and
management
Maintenance
and test
Provides detailed debug information, for
convenience of locating network faults.
Provides network diagnostic tool tracert and
ping.
Supports log function.

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Chapter 2 Fundamental Configuration
2.1 Setting up Configuration Environment
2.1.1 Setting up Local Configuration Environment through the Console Port
I. Configuring in Windows 9x
Connect the serial port of the workstation to the Console port of the VG to set up local
configuration environment.
Step 1: Connect the serial port of the workstation to the Console port of the VG with
RS-232 cable. See Figure 2-1.
Workstation
Console
RS-232 VG
Console cable
Workstation
Console
RS-232 VG
Console cable
Figure 2-1 Setting up local configuration environment through Console port
Step 2: Start terminal emulation program on the workstation, for example,
HyperTerminal on Windows 9x, to set up new connection. Configure the following
parameters for the RS232 serial port: Baudrate as 9600, data bit as 8, stop bit as 1,
parity as none, flow control as none and terminal emulation type as VT100. See Figure
2-2, Figure 2-3, Figure 2-4 and Figure 2-5 (HyperTerminal on Windows 9x).
Figure 2-2 Setting up new connection

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Figure 2-3 Selecting serial port for the connection
Figure 2-4 Setting parameters for the serial port

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Figure 2-5 Selecting terminal emulation type
Step 3: Power on the VG and it begins the self-test and load system programs. After
the startup is completed, the VG prompts you to press <Enter> to enter the system view.
For the initial use, no user name and password are configured. If you have configured
the user account and configured to authenticate the user logging onto the console port,
you need to input the username and password to enter the system view.
Step 4: You can configure the VG or view its running status through entering
corresponding commands.Also you can enter “?” for online help.
II. Configuring in Windows XP
Connect the serial port of the workstation to the Console port of the VG to set up the
local configuration environment.
Step 1: Connect the serial port of the workstation to the Console port of the VG with an
RS-232 cable. See Figure 2-1.
Step 2: Start terminal emulation program on the workstation, for example,
HyperTerminal on Windows 9x, to set up a new connection. Configure the following
parameters for the RS232 serial port: Baudrate as 9600, data bit as 8, stop bit as 1,
parity as none, flow control as none and terminal emulation type as VT100. See Figure
2-6 through Figure 2-11 (HyperTerminal on Windows XP).

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Figure 2-6 Set up new connection
Figure 2-7 Location Information window

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Figure 2-8 Select a PC port for connection
Figure 2-9 Set parameters for the port

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Figure 2-10 Choose attributes
Figure 2-11 Select the type of terminal emulation program
Step 3: Power on the VG and it begins the self-test and load the system programs.
After the startup is completed, the VG prompts you to press <Enter> to enter the
system view. For the initial use, no user name and password are configured. If you have
configured the user account and configured to authenticate the user logging onto the
console port, you need to input the username and password to enter the system view.

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Step 4: You can configure the VG or view its running status through entering
corresponding commands.Also you can enter “?” for online help.
2.1.2 Setting up the Local or Remote Configuration Environment by Using
Telnet
You can set up connection over LAN and WAN (wide area network) with the VG using
Telnet client program and log onto it for further configuration.
Step 1: Connect the Ethernet port of the workstation through LAN or WAN to the VG.
See Figure 2-12 and Figure 2-13.
PC Telnet Client
VG
LAN
Figure 2-12 Set up local configuration environment using Telnet
PC Telnet Client
LAN
Router
VG
WAN
Figure 2-13 Set up remote configuration environment using Telnet
Note:
For the connection through WAN, make sure the VG is reachable to the workstation.

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Step 2: Start Telnet client program on the workstation and set terminal emulation type
as VT100. See Figure 2-14 and Figure 2-15 (Telnet on Windows 9x).
Figure 2-14 Start Telnet program
Figure 2-15 Set up Telnet connection with the VG
Note:
In the above figure, the host name is the IP address of the WAN interface for remote
connection with the VG.
After you set up the Telnet connection successfully, the system will prompt you to enter
the username and password. If the authentication succeeds, the command line prompt
([VG], for example) appears. The message “Too many users or telnet permit!” means
that you cannot log onto the VG due to too many registered users. Telnet generally
supports five users at most.
Step 3: Enter corresponding commands to configure the VG or view its running status.
You can also enter “?” for online help.

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Note:
In the whole process of configuring the VG through Telnet connection, do not change
the IP address of the VG interface used in Telnet connection, otherwise the Telnet
connection will terminate. If it is unavoidable, you should enter the new IP address of
the Ethernet interface after modifying the VG IP address to set up the Telnet
connection again. You must configure at least one user when logging using Telnet.
2.2 Command Line Interface (CLI)
The VG provides a set of commands for configuration and management of network
devices. The CLI is characterized by the following features:
zLocal configuration through Console port
zRemote configuration using Telnet
zProviding online help any time the user keys in “?”
zProviding commands tracert, ping to test if the network is normal
zSupporting TFTP and FTP for convenient uploading and downloading of program
files and configuration file
zFuzzy matching of keywords (not in conflict) in search for commands. For example,
you can input dis to search for the command display.
2.2.1 CLI Views
Aview is a CLI interface of the VG. You can execute most commands in specific views.
For example, you can configure voice-related functions and parameters only in voice
view. For easy operations, some basic configuration commands are available in any
view.
The CLI views are in different levels. From the system view, you can enter any other
views and then into sub-functional views. The view architecture is detailed in Figure
2-16.
System view
Ethernet interface view
Loopbackinterface view
Dialup interface view
……
ACL view
Voice view Voice gatekeeper view
Voice AAA service view
Voice dialing strategyview
Voice subscriber line view Access service number view
Voice entity view
Access service number view
Voice entity view
Voice gatekeeperview
Voice AAAservice view
Voice dialup policy view
Voice subscriber line view
System view
Ethernet interface view
Loopbackinterface view
Dialup interface view
……
ACL view
Voice view Voice gatekeeper view
Voice AAA service view
Voice dialing strategyview
Voice subscriber line view Access service number view
Voice entity view
Voice gatekeeperview
Voice AAAservice view
Voice dialup program view
Voice subscriber line view
System view
Ethernet interface view
Loopbackinterface view
Dialup interface view
……
ACL view
Voice view Voice gatekeeper view
Voice AAA service view
Voice dialing strategyview
Voice subscriber line view Access service number view
Voice entity view
Access service number view
Voice entity view
Voice gatekeeperview
Voice AAAservice view
Voice dialup policy view
Voice subscriber line view
System view
Ethernet interface view
Loopbackinterface view
Dialup interface view
……
ACL view
Voice view Voice gatekeeper view
Voice AAA service view
Voice dialing strategyview
Voice subscriber line view Access service number view
Voice entity view
Voice gatekeeperview
Voice AAAservice view
Voice dialup program view
Voice subscriber line view
Figure 2-16 View architecture of the VG

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The functions and corresponding commands for different CLI views are listed in Table
2-1.
Table 2-1 Attribute list of CLI views
View Function Prompt Enter command Exit
command
System
view
Configures
system
parameters [VG] Enter upon
successful login
Use the
logout
command to
disconnect
Telnet
connection
with the VG
Ethernet
interface
view
Configures
parameters
for
Ethernet
interface
[VG-Ethernet0] Enter “interface
ethernet 0” in any
view
Use the quit
command to
return to the
system view
Loopback
interface
view
Configures
parameters
for
Loopback
interface
[VG-LoopBack1] Enter “interface
loopback 1” in
any view
Use the quit
command to
return to the
system view
ACL view Configures
ACL rules [VG-acl-2000] Enter “acl 2000”
in system view
Use the quit
command to
return to the
system view
Voice
view
Configures
voice
parameters [VG-voice] Enter
“voice-setup” in
system view
Use the quit
command to
return to the
system view
Voice
dialup
program
view
Configures
voice
dialing
policy.
[VG-voice-dial] Enter
“dial-program” in
the voice view
Use the quit
command to
return to the
system view
Voice line
view
Configures
voice line
parameters [VG-voice-line0]
Enter
“subscriber-line0”
in system view or
voice view
Use the quit
command to
return to the
voice view
Voice
entity
view
Configures
parameters
for voice
entity
[VG-voice-dial-enti
ty1]
Enter “entity 1
port” or “entity 1
voip” in voice
dialing policy
view
Use the quit
command to
return to voice
dialing policy
view
Voice
AAA view
Configures
voice AAA
service [VG-voice-aaa] Enter “aaa-client”
in voice view
Use the quit
command to
return to the
voice view

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View Function Prompt Enter command Exit
command
Access
number
view
Configures
parameters
for access
number
[VG-voice-dial-an
um12345]
Enter
“gw-access-num
ber 12345” in the
voice dialing
policy view
Use the quit
command to
return to voice
dialing policy
view
Voice
gatekeep
er view
Configures
parameters
for voice
gatekeeper
[VG-voice-gk] Enter “gk-client”
in voice view
Use the quit
command to
return to the
voice view
Note:
zThe command prompt is expressed by network device name (VG by default) plus
CLI view name, fox example, [VG-route-policy].
zSome commands can only be executed in the specific views, while others, including
ping, display, debugging, reset, save and interface, are available in any view.
zSome views require you to enable the corresponding functions or configure related
restrictive conditions before entering.
zIn any view except system view, you can use the quit command to return to the
upper-level view, and use the return command to directly return to the system view.
2.2.2 CLI Online Help
The VG provides the following two types of CLI online help:
zFull help
zPartial help
With the help, you can get the following information:
Full help ---- You can get all commands available in a certain view and simple
description by entering “?”.
[VG] ?
aaa-enable Enable Authentication, Authorization, Accounting
acl Specify access-list configuration
arp Add an ARP entry
……
Partial help ---- You can get all keywords available (if there are any) and simple
description by entering a command and a "?" which is separated by a space from the
command.
[VG] display ?
aaa AAA information

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acl Display access-list information
arp ARP table
base-information Some essential system information
client Current client information
clock Current router clock information
……
Partial help ---- You can get all commands starting with the string by entering a string
and “?” which follows the string.
[VG] d?
debugging delete display download
Partial help ---- You can get all keywords starting with the string by entering a command
and a string immediately followed by “?”.
[VG] display a?
aaa acl arp
2.2.3 CLI Error Information
Only those commands in correct syntax can be executed. Otherwise the system
prompts error information. Table 2-2 lists common CLI error information.
Table 2-2 Common CLI error information
Error information Explanation
No matching command is found.
No matching keyword is found.
Incorrect command
Parameter type is wrong.
Incomplete command The command is incomplete.
Invalid parameters Parameter value is beyond the range.
Too many parameters You have input too many parameters.
2.2.4 Displaying History Configuration
Amaximum of 20 history commands you have entered canbe saved in the CLI for later
use or repeated execution.
I. Displaying history commands
Perform the following configuration in any view.

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Table 2-3 Display history commands
Operation Command
Display history command display history-command
II. Viewing history commands
Press the following composite keys in any CLI view to call the history commands.
Table 2-4 View history commands
Operation Composite key remarks
View the previous
history command Up arrow key or <Ctrl+P> If there is history command used earlier, then it recalls the previous one.
View the next
history command Down arrow key or <Ctrl+N> If there is history command used later, then it recalls the next one.
2.2.5 CLI Editing Functions
The VG also supports command editing, with up to 255 characters for each command.
To edit commands, press the following keys in any CLI view.
Table 2-5 CLI editing
Key Function
Common keys If the edit buffer is not filled up, the corresponding character will be
added at the current position of the cursor and thecursor moves to
the right. Otherwise, it gives alert.
BackSpace Delete the character before the cursor. It gives alert when the
curser reaches the beginning of a command line.
Delete Delete the character after the cursor. It gives alert when the cursor
reaches the end of a command line.
←or <Ctrl+B> The cursor moves to the left the length of character. It gives alert
when the curser reaches the beginning of a command line.
→or <Ctrl+F> The cursor moves to the right the length of a character. It gives
alert when the cursor reaches the end of a command line.
2.2.6 CLI Display Functions
When the information to be displayed exceeds the screen size, three options may be
involved.

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Table 2-6 Function keys for terminal display
Operation Key(s)
Stop display Press <Ctrl+C> during pause
Continue display in next screen Press spacebar during pause
Continue display in next line Press <Enter> during pause
2.2.7 Shortcut Keys
Table 2-7 Shortcut keys for VG
Operation Key(s)
Display the current configurations Ctrl+A
Close all debugging Ctrl+D
Switch to system view Ctrl+Z
Display the route table Ctrl+R
Enter for confirmation Ctrl+J or Ctrl+M
Backspace Ctrl+H
2.3 Login Security Management
2.3.1 Configuring a User
I. Introduction to User ID
Three kinds of users are involved in VG management: administrator, operator and
guest. They are authorized with different rights.
An administrator can execute all commands available in the VG. Only an administrator
can configure all of the functions and parameters for the VG and enter the
aforementioned CLI views.
zAn operator is authorized with the right to view system status and perform
debugging. An operator can execute the following commands only:
debugging Enable system debugging functions
display Display system running information
language Switch language mode
logout logout
ping Send ICMP ECHO_REQUEST packets to network hosts
telnet Telnet to a remote host

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tracert Trace the route taken by packets to reach a network host
undo Remove a command or restore its defaults
zA guest can only perform remote test on the VG and execute these commands:
language Switch language mode
logout logout
ping Send ICMP ECHO_REQUEST packets to network hosts
telnet Telnet to a remote host
tracert Trace the route taken by packets to reach a network host
Perform the following configuration in system view.
Table 2-8 Configure users
Operation Command
Add a user local-user user-name [ service-type type ] [ password
{ simple | cipher } password ]
Delete a user undo local-user user-name
By default, no user is configured on the VG.
If no administrator is configured on the VG after the AAAfunction is enabled through the
aaa-enable command, then any user who logs on from the Console port will directly log
onto the system, as an administrator without user authentication (the system do not
prompt you to enter username and password). But other login modes (except HTTP)
require user authentication by default.
Note:
zAt least one administrator should be configured on the VG. Otherwise, anyone can
log onto the system from the Console port without authentication.
zAt least one user should be configured. Otherwise, no login mode (except HTTP) is
available, except the login from the Console port.