Allied Telesis AT-VP504E FXS Instruction Manual

AT-VP504E FXO (H.323)
Administration Manual
PN 990-11592-10 Rev C
VoIPTalk

Copyright © 2001 Allied Telesyn International, Corp.
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Contents Administration Manual (H.323 Version)
AT-VP504E FXO iii
Contents
Preface
Welcome to the AT-VP504E FXO.......................................................... vii
Before you Begin........................................................................................................vii
Acronyms....................................................................................................................vii
Related Documentation.............................................................................................viii
Chapter 1
Introducing the AT-VP504E FXO ............................................................ 1
Overview...................................................................................................................... 1
Why use the AT-VP504E FXO? ..............................................................................................1
How does it Work? ..................................................................................................................2
Features ...................................................................................................................... 2
Panels..........................................................................................................................3
Front Indicators........................................................................................................................3
Rear Connections....................................................................................................................4
Interpreting the AT-VP504E FXO LEDs ...................................................................... 5
Interpreting the Ready LED.....................................................................................................5
Interpreting the In Use LED.....................................................................................................5
Interpreting the LAN LED ........................................................................................................6
Interpreting the Power LED .....................................................................................................6
LED Behavior in Download Mode............................................................................................7
Chapter 2
Installation................................................................................................ 9
Hardware and Software Requirements ....................................................................... 9
Unpacking the AT-VP504E FXO................................................................................. 9
Choosing a Suitable Location.................................................................................... 10
Mounting the AT-VP504E FXO .............................................................................................10
Installing the AT-VP504E FXO for the First Time...................................................... 15
Using the Default Settings Switch .........................................................................................15
Finding the IP Address Assigned to a AT-VP504E FXO.......................................................19
Installing the AT-VP504E FXO Hardware ................................................................. 21

Contents Administration Manual (H.323 Version)
AT-VP504E FXO iv
Chapter 3
Administration........................................................................................ 23
Web Interface............................................................................................................ 23
Choosing a Suitable Browser................................................................................................23
Accessing the Web Interface.................................................................................................23
Accessing the Configuration Web Page................................................................................25
Integrating the AT-VP504E FXO into the Communication Environment................... 28
Configuring IP Addresses.......................................................................................... 32
Using a Syslog Daemon........................................................................................................33
Setting up Gatekeeper Information............................................................................ 34
Quality of Service Settings ........................................................................................ 37
Differentiated Services (DiffServ) Section .............................................................................37
802.1q Section.......................................................................................................................39
Configuring Incoming and Outgoing Calls Parameters ............................................. 41
Telephony Settings................................................................................................................43
PSTN to IP Network Call Settings .........................................................................................44
IP Network to PSTN Call Settings .........................................................................................48
Analog Telephone Line Type Setting ....................................................................................48
Geographical Specific Configuration ......................................................................... 48
Viewing Hardware Information .................................................................................. 49
Performing a RAM Check......................................................................................................50
Performing a ROM Check .....................................................................................................50
Changing the Password/User Name ......................................................................... 50
Chapter 4
How to Use the AT-VP504E FXO .......................................................... 53
AT-VP504E FXO Call Processes .............................................................................. 53
Types of Calls........................................................................................................................53
What is a Dialing Rule? ............................................................................................. 55
General Dialing Rules............................................................................................................55
IP Address Specific Rules .....................................................................................................59
Dialing Rules Examples............................................................................................. 60
Example 1..............................................................................................................................60
Example 2..............................................................................................................................61
Chapter 5
Software Upgrade ..................................................................................63
Setting up the Software Download............................................................................ 63
Downloading a New Software Version..................................................................................63
Emergency Software Configuration Section.............................................................. 65

Contents Administration Manual (H.323 Version)
AT-VP504E FXO v
Emergency Software Procedure............................................................................................66
Chapter 6
Maintenance ...........................................................................................69
Warning..................................................................................................................... 69
Caution Regarding Handling ..................................................................................... 69
Location.................................................................................................................................69
Condensation ........................................................................................................................69
Cleaning ................................................................................................................................69
Troubleshooting......................................................................................................... 69
Solving General Operation Problems ....................................................................................70
Solving Web Interface Problems ...........................................................................................71
Solving Software Upgrade Problems.....................................................................................72
Appendix A
DHCP Server Vendor Specific Information.......................................... 73
Configuring the DHCP Server ................................................................................... 73
Network Configuration...........................................................................................................73
Creating Vendor Specific Information....................................................................................74
Appendix B
Continent Specific Parameters............................................................. 79
Australia Parameters................................................................................................. 79
Austria Parameters.................................................................................................... 79
France Parameters.................................................................................................... 80
Germany Parameters ................................................................................................ 80
Great Britain Parameters........................................................................................... 81
Italy Parameters ........................................................................................................ 82
Japan Parameters ..................................................................................................... 82
North America Parameters........................................................................................ 83
Spain Parameters...................................................................................................... 84
Switzerland Parameters ............................................................................................ 84
Appendix C
Gatekeeper Registration Logic............................................................. 85
No Gatekeeper Registration...................................................................................... 85
Messages Exchanged ............................................................................................... 85

Contents Administration Manual (H.323 Version)
AT-VP504E FXO vi
Registration with a Gatekeeper ................................................................................. 86
Lightweight Registration............................................................................................ 88
Examples................................................................................................................... 89
Registering with a Gatekeeper ..............................................................................................89
Unregistration Request from a Gatekeeper...........................................................................89
Gatekeeper Unreachable ......................................................................................................90
Appendix D
Glossary.................................................................................................. 93

AT-VP504E FXO vii
PWelcome to the AT-VP504E FXO
The AT-VP504E FXO is an H.323 Gateway that connects up to four
PSTN lines to a Local Area Network with access to an Intranet or the
Internet to permit high-quality, full duplex, audio/fax communications
over IP Packet Networks. This way, the AT-VP504E FXO acts as a
Gateway for bridged communications.
Before you Begin This manual provides all the information needed to install and manage
the AT-VP504E FXO with the configuration web pages. It is intended
for network administrators who install and set up network equipment;
consequently, it assumes a basic working knowledge of LANs (Local
Area Networks).
From the perspective of the LAN administrator, an AT-VP504E FXO
presents itself just like another PC that is to be added to the LAN. It
requires the same kind of TCP/IP addressing that is required by a PC.
The AT-VP504E FXO can also use a DHCP server on the LAN to
automatically receive its IP configuration assignment.
Acronyms
DHCP Dynamic Host Configuration Protocol
DNS Domain Name Server
DSP Digital Signal Processor
FXO Foreign Exchange Office
IP Internet Protocol
LAN Local Area Network
LED Light Emitting Diode
MAC Media Access Control
Mb/s Megabits per Second
PBX Private Branch Exchange
PCM Pulse Code Modulation
PROM Programmable Read-Only Memory
PSTN Public-Switched Telephone Network

Preface - Welcome to the AT-VP504E FXO Administration Manual (H.323 Version)
AT-VP504E FXO viii
Related Documen-
tation In addition to this Manual, each document set of the AT-VP504E FXO
includes the following:
 AT-VP504E FXO Quick Start booklet
This printed booklet allowsyou to quickly setup and work with
the AT-VP504E FXO.
TCP/IP Transmission Control Protocol/Internet Protocol
TFTP Trivial File Transfer Protocol
VoIP Voice Over Internet Protocol
WAN WideAreaNetwork

AT-VP504E FXO 1
1Introducing the AT-VP504E FXO
This chapter introduces the AT-VP504E FXO. It describes the
AT-VP504E FXO’s main features and illustrates its front panel
indicators and back panel connectors.
Overview The AT-VP504E FXO is an analog gateway that allows connectivity
between the PSTN and a VoIP network. This way, an IP-based
telephony system can be linked to the PSTN world through up to four
(4) standard telephone lines. The AT-VP504E FXO devices are
stackable so the number of telephone lines that are required can be
easily met by adding more devices in the network.
Why use the
AT-VP504E
FXO?
 Merges voice and data traffic onto a single unified
network.
Carrying telephone traffic over data networks uses less
bandwidth (as compared to telephone trunks), resulting in a
more cost-effective network solution.
 Easily integrates with existing telephone equipment.
Overhead is minimal, because the AT-VP504E FXO
gateways fully utilize your existing telecommunications
equipment and computer networks.
 Bypasses long-distance toll charges for realized savings.
 Supports 10 Mb/s and 100 Mb/s Ethernet networks.
 Upgrades software easily for future enhancements.
 Uses the latest standards in Internet Telephony.
• H.323 protocol for call management
• Real-Time Transport Protocol (RTP) for voice
streaming
 Supports the following Codecs:
• G.711 (µ-law, A-law)
• G.723.1 (5.3 kbps and 6.4 kbps)
 Supports Quality of Service technologies.
• Differentiated Services (DS) Field
• IEEE 802.1q user priority tagging

Chapter 1 - Introducing the AT-VP504E FXO Administration Manual (H.323 Version)
AT-VP504E FXO 2
How does it
Work? The AT-VP504E FXO is a gateway. When a PSTN user contacts the AT-VP504E FXO, the call is answered and a second dial tone (IP dial
tone) is presented to the PSTN user. The number dialed at this
moment will be parsed by the AT-VP504E FXO and used in an H.323
call establishment.
The AT-VP504E FXO contacts an H.323 compliant gatekeeper. The
gatekeeper then looks through its internal database to translate the
dialed number to a corresponding IP address. If none exists, the
gatekeeper will locate a gateway (which can be another AT-VP504E
FXO) for placing the call on the PSTN.
When an Internet telephony call is placed from one location to another,
the voice signals pass through the AT-VP504E FXO. They are
compressed into data packets, which are then diverted by the
AT-VP504E FXO onto an IP/data network such as the Internet, or
another type of data network. Upon reaching its destination, the data is
converted back into voice signals, then fed into the corresponding
endpoint.
The AT-VP504E FXO system utilizes technology that optimizes
available bandwidth, so users do not hear echoes, stops and starts, or
annoying clicks and pops. When traffic congestion is properly
managed, AT-VP504E FXO customers cannot tell that their
conversation is being carried over a packet network rather than the
traditional PSTN.
See“AT-VP504E FXO Call Processes” on page 53 for more details on
AT-VP504E FXO call process and other examples.
Features The following table lists some of the features the AT-VP504E FXO
offers.
Table 1: AT-VP504E FXO’s Features
Feature Description
4 FXO Ports Ports that will act as FX Office (FXO) ports, enabling the
unit to be integrated into many existing telephony
configurations. These ports support both Loop Start and
Ground Start lines.
Fax Interface Handles G3 and Super G3 fax transmissions at speeds
up to 33.6 kbps. Automatic fax mode detection is
standard on all ports.