Allied Telesis AT-VP504E FXS Instruction Manual

AT-VP504E FXS (SIP/MGCP)
Administration Manual
PN 990-11591-10 Rev C
VoIPTalk

Copyright © 2001 Allied Telesyn International, Corp.
960 Stewart Drive Suite B, Sunnyvale CA USA 94085
All rights reserved. No part of this publication may be reproduced without prior written permission from Allied
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Contents Administration Manual (SIP/MGCP Version)
AT-VP504E FXS iii
Contents
Preface
Introduction............................................................................................. ix
Before you Begin.........................................................................................................ix
Acronyms.....................................................................................................................ix
Related Documentation................................................................................................x
Manual Conventions....................................................................................................xi
Part 1: Common Settings
Chapter 1
Getting Started......................................................................................... 1
Overview...................................................................................................................... 1
Why use the AT-VP504E FXS?...............................................................................................1
Implementing the AT-VP504E FXS Solution............................................................... 2
Features ...................................................................................................................... 2
Panels..........................................................................................................................4
Front Indicators........................................................................................................................4
Rear Connectors .....................................................................................................................5
What is SNMP?........................................................................................................... 6
SNMP Messages.....................................................................................................................7
What is a MIB?............................................................................................................ 7
MIB Structure...........................................................................................................................8
Changing a Parameter Value ..................................................................................................8
Switching Protocols .................................................................................................................9
Chapter 2
Installation.............................................................................................. 11
Hardware and Software Requirements ..................................................................... 11
Package Contents ..................................................................................................... 12
Choosing a Suitable Installation Site......................................................................... 12
Mounting the AT-VP504E FXS..............................................................................................13
Connecting the AT-VP504E FXS .............................................................................. 17

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AT-VP504E FXS iv
Interpreting the AT-VP504E FXS LEDs..................................................................... 19
Test LED................................................................................................................................19
LAN LED................................................................................................................................19
Power LED ............................................................................................................................19
LED Behavior in Download Mode..........................................................................................20
Interpreting the LEDs in Reset Mode ....................................................................................20
Initial Provisioning Sequence .................................................................................... 21
Troubleshooting During Provisioning.....................................................................................22
Using the Dual-Mode Default Settings Switch........................................................... 22
Recovery Mode .....................................................................................................................22
Factory Settings Mode...........................................................................................................24
Verifying the Installation ............................................................................................ 25
Chapter 3
Basic Configuration............................................................................... 27
Configuring the Software........................................................................................... 27
Sending Configuration Data to the AT-VP504E FXS ............................................................28
Provisioning Sequence..........................................................................................................29
Changing Software Variables................................................................................................30
Setting the Location (Country)................................................................................... 30
Overriding the Country-Specific Settings...............................................................................32
Placing a Call............................................................................................................. 33
Chapter 4
Network Configuration .......................................................................... 35
Setting the Speed of the Ethernet Connection .......................................................... 35
Using DHCP (Dynamic) or Static Configuration ........................................................ 35
Using DHCP (Dynamic) Configuration...................................................................................35
Using Static Configuration.....................................................................................................37
Configuring the DHCP Server ................................................................................... 38
Connection to the DHCP Behavior........................................................................................38
Network Configuration...........................................................................................................39
Creating Vendor Specific Information....................................................................................39
Chapter 5
Software Download................................................................................ 43
Before Downloading .................................................................................................. 43
Configuring the TFTP Server.................................................................................................43
DHCP vs. Static Configuration ..............................................................................................45
Download Procedure................................................................................................. 46

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AT-VP504E FXS v
LED States ............................................................................................................................48
Emergency Software Procedure................................................................................ 49
Downloading the Emergency Software .................................................................................49
Using the Emergency Software.............................................................................................51
Chapter 6
System Failure Bypass Connector Configuration..............................53
System Failure Bypass Connector Settings .............................................................. 53
Setting the Bypass Service....................................................................................................53
Chapter 7
Port Configuration ................................................................................. 55
Enabling Ports........................................................................................................... 55
Setting Basic DSP Variables ..................................................................................... 55
Setting User Gain Variables...................................................................................... 57
Setting Country-Specific Variables............................................................................ 58
Selecting the Preferred Codec .................................................................................. 59
Enabling Individual Codecs ...................................................................................................59
Chapter 8
Unit Manager Configuration.................................................................. 61
Using the Unit Manager............................................................................................. 61
DHCP vs. Static Configuration ..............................................................................................62
Chapter 9
Miscellaneous Configuration................................................................ 63
Using QoS ................................................................................................................. 63
Differentiated Services (DS) Field .........................................................................................63
IEEE 802.1q ..........................................................................................................................65
VLAN .....................................................................................................................................66
Syslog Daemon Configuration................................................................................... 67
Why a Syslog Daemon?........................................................................................................67
DHCP vs. Static Configuration ..............................................................................................68
Configuring the Syslog Daemon............................................................................................69
SNMP Configuration.................................................................................................. 69
SNTP Settings........................................................................................................... 72
DHCP vs. Static Configuration ..............................................................................................73

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AT-VP504E FXS vi
Selecting a Time Zone...........................................................................................................74
Defining a Custom Time Zone...............................................................................................76
Chapter 10
Maintenance ........................................................................................... 79
Warning..................................................................................................................... 79
Caution Regarding Handling ..................................................................................... 79
Location.................................................................................................................................79
Condensation ........................................................................................................................79
Cleaning ................................................................................................................................79
Troubleshooting......................................................................................................... 79
Solving General Operation Problems ....................................................................................80
Solving Software Upgrade Problems.....................................................................................81
Solving SNMP Management Software Problems..................................................................81
Part 2: SIP-Specific Settings
Chapter 11
Signalling Protocol Configuration – SIP..............................................85
Setting up the SIP Logging Client.............................................................................. 85
DHCP vs. Static Configuration ..............................................................................................85
Setting up SIP User Agents Servers ......................................................................... 86
DHCP vs. Static Configuration ..............................................................................................86
Defining SIP User Agents.......................................................................................... 88
Authentication Information.....................................................................................................89
Chapter 12
Telephony Configuration ...................................................................... 91
Using Dial Maps ........................................................................................................ 91
Using the Dial Map Special Characters.................................................................................92
How to Use a Dial Map..........................................................................................................92
Validating a Dial Map.............................................................................................................94
Setting up Dial Maps ................................................................................................. 94
Dial Map Examples.................................................................................................... 96
Example 1 – Standard Calls..................................................................................................96
Example 2 – PBX Emulation .................................................................................................99

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Supplementary Telephony Services........................................................................ 103
Call Forward ........................................................................................................................103
Call Waiting .........................................................................................................................106
Call Transfer – Supervised..................................................................................................106
Call Transfer – Unsupervised ..............................................................................................106
Caller ID on Call Waiting .....................................................................................................106
Three-Way Conference Call................................................................................................106
Part 3: MGCP-Specific Settings
Chapter 13
Signalling Protocol Configuration – MGCP....................................... 109
Introduction.............................................................................................................. 109
MGCP Information...............................................................................................................109
Services Provided................................................................................................................110
Setting up Call Agents Information.......................................................................... 110
DHCP vs. Static Configuration ............................................................................................110
Configuring Endpoints............................................................................................. 112
Setting up Retransmission Parameters................................................................... 112
Configuring Packages ............................................................................................. 114
Generic Media Package ......................................................................................................114
DTMF Package....................................................................................................................115
Line Package.......................................................................................................................115
Viewing Status Parameters ..................................................................................... 116
Viewing MGCP Statistics......................................................................................... 117
Appendix A
Country Specific Parameters.............................................................. 119
Australia................................................................................................................... 119
Austria ..................................................................................................................... 119
France ..................................................................................................................... 120
Germany.................................................................................................................. 120
Great Britain ............................................................................................................ 121
Italy.......................................................................................................................... 122
Japan....................................................................................................................... 122
North America.......................................................................................................... 123
Spain ....................................................................................................................... 124
Switzerland.............................................................................................................. 124

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AT-VP504E FXS viii
Appendix B
Safety & EMI Certifications................................................................. 125
Safety & EMI Certifications Supported .................................................................... 125
Disclaimers.............................................................................................................. 125
Federal Communications Commission (FCC) Part 15.........................................................125
Federal Communications Commission (FCC) Part 68.........................................................125
Industry Canada ..................................................................................................................126
Appendix C
Glossary................................................................................................ 129

AT-VP504E FXS ix
PIntroduction
The AT-VP504E FXS is a telephony adaptor that connects analog
telephones or fax machines to a Local Area Network with access to an
IP Network to permit high-quality, full duplex, audio/fax
communications over IP Packet Networks.
Before you Begin This manual provides all the information needed to install and manage
the AT-VP504E FXS. It is intended for network administrators who
installand setupnetwork equipment;consequently,itassumes a basic
working knowledge of LANs.
From the perspective of the LAN administrator, an AT-VP504E FXS
presents itself just like another PC that is to be added to the LAN. It will
require the same kind of TCP/IP addressing that is required by a PC.
The AT-VP504E FXS can also use a DHCP server on the LAN to
receive its IP configuration assignment automatically.
Acronyms
What’s New in this Version
• 802.1q QoS priority tagging. See “IEEE 802.1q” on page 65 for more details.
• VLAN QoS priority tagging. See “VLAN” on page 66 for more details.
• Simple Network Time Protocol (SNTP). See “SNTP Settings” on page 72 for more details.
• Call transfer – Unsupervised. See “Call Transfer – Unsupervised” on page 106 for more
details.
BORSCHT Battery feed, Over-voltage protection, Ringing,
Signalling, Coding, Hybrid, and Testing
CPU Central Processing Unit
DHCP Dynamic Host Configuration Protocol
DNS Domain Name Server
DSP Digital Signal Processor
FXS Foreign Exchange Service
IP Internet Protocol
ISDN Integrated Services Digital Network

Preface - Introduction Administration Manual (SIP/MGCP Version)
AT-VP504E FXS x
Related Documen-
tation In addition to this manual, each document set of the AT-VP504E FXS
includes the following:
 IP Communication Server Manual1
This manual explains how to install and configure the IP
Communication Server, which is a set of software tools that
helps manage a network of VP500 communication units and
other SIP devices. It also explains how to use the Unit
Manager to remotely configure AT-VP504E FXS
communication units.
The manual isnot printed – it islocated on the documentation
CD provided with the AT-VP504E FXS.
 AT-VP504E FXS User’s Manual
This manual provides information on how to use the
AT-VP504E FXS. The manual is not printed – it is located on
the documentation CD provided with the AT-VP504E FXS.
LAN Local Area Network
LED Light Emitting Diode
MAC Media Access Control
PBX Private Branch Exchange
PROM Programmable Read-Only Memory
PSTN Public-Switched Telephone Network
SCN Switched Circuit Network
SIP Session Initiation Protocol
SLIC Subscriber's Line Interface Circuit
SNMP Simple Network Management Protocol
TCP/IP Transmission Control Protocol/Internet Protocol
TFTP Trivial File Transfer Protocol
VoIP Voice Over Internet Protocol
WAN Wide Area Network
1. This is useful only if you have purchased the IP Communication Server.

Preface - Introduction Administration Manual (SIP/MGCP Version)
AT-VP504E FXS xi
 MIB Reference Manual
Lists and explains all parameters in the MIB structure.
 AT-VP504E FXS Quick Start booklet
This printed booklet allows you to quickly setup and workwith
the AT-VP504E FXS.
 IP Communication Server Quick Start booklet1
This printed booklet allows you to quickly setup and workwith
the IP Communication Server.
Manual Conven-
tions This version ofthe AT-VP504E FXS can use either one of the following
signalling protocols:
 the Session Initiation Protocol (SIP)
 the Media Gateway Control Protocol (MGCP)
 the Network-based Call Signaling (NCS)
To accommodate different settings in these signalling protocols, this
manual is separated in three parts:
Table 1: Manual Parts
Part Description
Part 1: Common Settings Describes the settings that are valid on
units running either the SIP or MGCP
signalling protocol.
Part 2: SIP-Specific Settings Describes settings exclusive to units
running the SIP signalling protocol.
Part 3: MGCP-Specific
Settings Describes settings exclusive to units running the MGCP signalling protocol.

Preface - Introduction Administration Manual (SIP/MGCP Version)
AT-VP504E FXS xii

Part 1:
Common Settings

AT-VP504E FXS 1
1Getting Started
This chapter presents the AT-VP504E FXS. It describes the physical
device and introduces the Simple Network Management Protocol
(SNMP) as remote management tool.
Overview The AT-VP504E FXS is a standalone Internet telephony terminal that
connects to virtually any business telephone system supporting
standard analog lines. It uses industry standard components and is
designed for maximum system integration and scalability.
This version of the AT-VP504E FXS can use either one of the following
signalling protocols:
 the Session Initiation Protocol (SIP), which is a simple
signalling protocol for Internet conferencing and
telephony.
 the Media Gateway Control Protocol (MGCP), which is a
protocol for controlling Voice over IP (VoIP) Gateways
from intelligent external call control elements.
MGCP uses the Master/Slave concept, where external call
control elements are the Masters, while the devices
connected to them (such as the AT-VP504E FXS), are the
Slaves and only obey orders given by the Master.
The AT-VP504E FXS is used with any MGCP Call Agent
(also known as Connection Manager), which manages calls
from and to the AT-VP504E FXS.
You can switch from one signalling protocol to the other. See “MIB
Structure” on page 8 for more information.
Why use the
AT-VP504E
FXS?
There are many reasons to use the AT-VP504E FXS:
 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.
 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.

Chapter 1 - Getting Started Administration Manual (SIP/MGCP Version)
AT-VP504E FXS 2
• SIP or MGCP protocol for call management
• T.38 for fax relay
 Supports the following Codecs:
• G.711 (µ-law, A-law)
• G.723.1A
• G.729 A rev. B
• T.38 (fax) over UDP only
 Supports Quality of Service technologies.
• Differentiated Services Field (DSCP)
• IEEE 802.1q user priority tagging
Implementing the
AT-VP504E FXS
Solution
When an Internet telephony call is placed from one location to another,
the voice signals pass through the AT-VP504E FXS. The voice signals
are compressed into data packets, which are then diverted by the unit
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 FXS 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 FXS customers cannot tell that their
conversation is being carried over a packet network rather than the
traditional Switched Circuit Network (SCN).
See the
AT-VP504E FXS User’s Manuals for call processes examples.
Features The following table lists some of the features the AT-VP504E FXS
offers.
Table 1: AT-VP504E FXS Features
Feature Description
4 FXS Ports Central Office quality SLICs supporting all the
BORSCHT functions and thus meet most world wide
telephony standards.

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AT-VP504E FXS 3
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. Real-Time Fax Over UDP with the
T.38 protocol stack is also available.
Analog
Modem Supports 9.6 kbps to 33.6 kbps analog modems (V.34 support over clear channel).
System
Failure
Bypass
In the event of a commercial power failure or network
failure, the system failure bypass feature permits users to
make and receive calls even when the AT-VP504E FXS
is not operating.
Full integra-
tion with the
IP Communi-
cation Servera
After dialing a number, the AT-VP504E FXS contacts the
IP Communication Server and the server looks through
its internal database to translate the dialed number to a
corresponding IP address. If there is no matching IP
address associated to the dialed number, the IP
Communication Server will look for a gateway willing to
place a call to the dialed number on the SCN.
Fully
Configurable
“SCN-Like”
Experience
The AT-VP504E FXS provides the tones heard on the
standard telephone network. For example, a dial tone will
be heard as soon as the handset is lifted. Call progress
tones such as ringback and busy are also provided. The
AT-VP504E FXS can be configured to take almost any
kind of telephone number.
Remote Site
Configuration/
Management
Integrates seamlessly into your existing administration
environment. Implementation of a SNMP agent allows
device-related adjustment parameters to be modified
and polled remotely. The software upgrade (CPU and
DSP code) is downloaded via a TFTP server.
a. Only valid for units that run the SIP signalling protocol.
Table 1: AT-VP504E FXS Features (Continued)
Feature Description

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AT-VP504E FXS 4
Panels This section provides an overview of the front and rear panels of the
AT-VP504E FXS.
Front
Indicators Figure 1 shows the three(3) visual indicatorslocated on thefront ofthe AT-VP504E FXS.
Figure 1: Front Panel Indicators
Table 2 describes the LEDs on the front panel of the AT-VP504E FXS.
Test
indicator LAN link pulse indicator Power ON
indicator
Table 2: Front Panel Indicators
Indicator Description
– Test –
Test indicator On when the AT-VP504E FXS is either running power up diagnostics or that it is in a
maintenance state.
– LAN –
LAN link pulse indicator Provides the state of the network connected to the
Ethernet port.
– Power –
Power ON indicator When lit, power is applied to the AT-VP504E FXS.

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AT-VP504E FXS 5
Rear
Connectors The AT-VP504E FXS has several connections that must be properly set. Figure 2 shows the back panel.
Figure 2: Back Panel Connectors
Table 3 describes the back panel connections.
10/100 BaseT
Ethernet RJ-45
connector
Factory
Default
Settings
Phone/Fax (FXS)
RJ-11 connectors
System Failure
BypassConnection
with Port 1
Power connector
Table 3: Connections of the AT-VP504E FXS
Connection Description
Ethernet A 10 BaseT Ethernet RJ-45 connector for
access to a LAN.
System Failure Bypass In the event of a commercial power failure or
network failure, the system failure bypass
feature permits users to make and receive calls
even when the AT-VP504E FXS is not
operating.
Phone/Fax Port 1
Phone/Fax Port 2
Phone/Fax Port 3
Phone/Fax Port 4
Four (4) RJ-11 connectors to attach a
conventional telephone or G3/Super G3 fax
machine.
Power connector A power connector for the power supply of the
AT-VP504E FXS.

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AT-VP504E FXS 6
What is SNMP? The AT-VP504E FXS uses the Simple Network Management Protocol
(SNMP) for initial software configuration provisioning and subsequent
software configuration.
SNMP is a simple request-reply protocol for Internet network
management services. It consists of
network management stations
(managers) communicating with
network elements . The network
elements can be anything that run the TCP/IP protocol suite: hosts,
routers,Xterminals(orinthiscase, an AT-VP504E FXS). Thesoftware
in the network element that runs the management software is called
the
agent . Management stations arenormally workstations that display
relevant facts about the elements being monitored.
SNMP works over the IP (Internet Protocol) communication stack.
The communication can be two ways: the manager asking the agent
for aspecific value (“whatis your designation?”),or the agent telling the
manager that something important happened (“the AT-VP504E FXS
has gone down”). Also, the manager can set variables in the agent in
addition to reading variables from the agent.
TCP/IP network management consists of three pieces:
1. A Management Information Base (MIB) that specifies what
variables the network elements maintain (theinformation that
can be queried and set by the manager). See “What is a
MIB?” on page 7 for more details.
2. A set of common structures and an identification scheme
used to reference the variables in the MIB. This is called the
Structure of Management Information (SMI).
3. The protocol between the manager and the element, called
the
Simple Network Management Protocol (SNMP). This
details the format of the packets exchanged. Although a wide
Default Settings switch The Default Settings switch resets configuration
parameters of the AT-VP504E FXS to default
(known values). It can be used to reconfigure
units.
Warning: Read Section “Using the Dual-Mode
Default Settings Switch” on page 22 before
attempting to reset the unit.
Table 3: Connections of the AT-VP504E FXS (Continued)
Connection Description