Multitech MultiVOIP MVP200 User manual

Voice / Fax over IP Networks
Voice/Fax Over IP Networks
Model MVP200
User Guide

User Guide
88311800 Revision A
MultiVOIP 200 (Model MVP200)
This publication may not be reproduced, in whole or in part, without prior expressed written permission from Multi-
Tech Systems, Inc.All rights reserved.
Copyright © 1999, by Multi-Tech Systems, Inc.
Multi-Tech Systems, Inc. makes no representations or warranties with respect to the contents hereof and
specifically disclaims any implied warranties of merchantability or fitness for any particular purpose. Furthermore,
Multi-Tech Systems, Inc. reserves the right to revise this publication and to make changes from time to time in the
content hereof without obligation of Multi-Tech Systems, Inc. to notify any person or organization of such
revisions or changes. Record of Revisions
Revision Description
A Manual released; covers software version 2.01.All pages at revision A.
(5/14/99) Patents
This Product is covered by one or more of the following U.S. Patent Numbers: 5.301.274; 5.309.562 ; 5.355.365;
5.355.653; 5.452.289; 5.453.986 . Other Patents Pending.
TRADEMARK
Trademark of Multi-Tech Systems, Inc. is the Multi-Tech logo.
Windows is a registered trademark of Microsoft.
Multi-Tech Systems, Inc.
2205 Woodale Drive
Mounds View, Minnesota 55112
[phone] or [phone]
Fax [phone]
Tech Support [phone]
Fax-Back [phone]
InternetAddress: http://www.multitech.com

iii
Contents
Chapter 1 - Introduction and Description
Introduction ................................................................................................................................................ 6
Preview of this Guide ................................................................................................................................. 7
TypicalApplication...................................................................................................................................... 8
Front Panel Description.............................................................................................................................11
Back Panel Description ............................................................................................................................ 12
Power Connector ............................................................................................................................... 12
Command Connector......................................................................................................................... 12
10Base-T (Ethernet) Connector......................................................................................................... 12
Voice/Fax Channel 1 and 2................................................................................................................ 12
Specifications ........................................................................................................................................... 13
Ethernet Port...................................................................................................................................... 13
Command Port................................................................................................................................... 13
Voice/Fax Channel 1 and 2................................................................................................................ 13
Electrical/Physical.............................................................................................................................. 13
Chapter 2 - Installation
Installing Your MultiVOIP.......................................................................................................................... 16
Phase 1: Configure and Install Your Master MultiVOIP ..................................................................... 16
Phase 2: Configure Your Slave MultiVOIP(s) .................................................................................... 16
Phase 3: Deploy the VOIP Network................................................................................................... 16
Safety Warning Telecom .......................................................................................................................... 16
Unpacking Your MultiVOIP....................................................................................................................... 17
Safety Warnings ....................................................................................................................................... 17
Valid VOIP Network Connections............................................................................................................. 17
Cabling Your MultiVOIP............................................................................................................................ 18
Cabling Procedure ............................................................................................................................. 18
E&M Jumper Block Positioning Procedure .............................................................................................. 20
Chapter 3 - Software Loading and Configuration
Installing Your MultiVOIP Software........................................................................................................... 22
Phase 1: Configuring Your Master MultiVOIP .................................................................................... 22
Phase 2: Configure Your Slave MultiVOIPs ....................................................................................... 32
Phase 3: Deploy the VOIP Network.................................................................................................. 38
Remote SiteAdministrator ................................................................................................................. 38
Chapter 4 - MultiVOIP Software
Introduction .............................................................................................................................................. 42
Before You Begin ............................................................................................................................... 42
MultiVOIPConfiguration........................................................................................................................... 43
Changing Channel Parameters ................................................................................................................ 44
Interface............................................................................................................................................. 44
Voice/Fax ........................................................................................................................................... 45
Regional............................................................................................................................................. 46
Changing the Phone Directory Database................................................................................................. 47
Changing IP Parameters .......................................................................................................................... 49
ProxyServer....................................................................................................................................... 49
Viewing Call Progress .............................................................................................................................. 50
Applications Setup ................................................................................................................................... 51
Viewing Statistics ..................................................................................................................................... 52
IP Statistics ........................................................................................................................................ 52
SNMP Statistics ................................................................................................................................. 53

Viewing Logs ............................................................................................................................................ 54
Viewing Log Entry Details.................................................................................................................. 54
Viewing Channel Totals...................................................................................................................... 55
Reports..................................................................................................................................................... 56
Upgrade Procedures ................................................................................................................................ 57
Download Firmware ........................................................................................................................... 57
Download Coders .............................................................................................................................. 58
Chapter 5 - Remote Configuration and Management
Introduction .............................................................................................................................................. 60
Remote Configuration .............................................................................................................................. 60
Modem-Based ................................................................................................................................... 60
LAN-Based ....................................................................................................................................... 62
Remote Management ............................................................................................................................... 64
Telnet ................................................................................................................................................. 64
WEB Management............................................................................................................................. 65
Chapter 6 - Warranty, Service and Tech Support
Introduction .............................................................................................................................................. 68
Limited Warranty ...................................................................................................................................... 68
On-line Warranty Registration............................................................................................................ 68
Service ..................................................................................................................................................... 69
Tech Support ............................................................................................................................................ 70
Recording MultiVOIP Information ...................................................................................................... 70
The Multi-Tech BBS ................................................................................................................................. 71
To Log on to the Multi-Tech BBS........................................................................................................ 71
To Download a File ............................................................................................................................ 71
About the Internet..................................................................................................................................... 72
Appendixes
AppendixA- TCP/IP (Transmission Control Protocol/Internet Protocol) Description ............................... 74
Appendix B - Cabling Diagrams ............................................................................................................... 77
Appendix C - Regulatory Information ....................................................................................................... 79
ClassA Statement ............................................................................................................................. 79
Fax Branding Statement .................................................................................................................... 79
FCC Part 68 Telecom......................................................................................................................... 79
Canadian Limitations Notice .............................................................................................................. 80
EMC, Safety and Terminal Directive Compliance .............................................................................. 81
Glossary
Index
iv

Voice / Fax over IP Networks
Chapter 1 - Introduction and Description

6
MultiVOIP 200 User Guide
Introduction
Welcome to Multi-Tech's new voice/fax gateway, the MultiVOIP, model MVP200. The MultiVOIP
allows analog voice and fax communication over a traditional data communications/data networking
digital Internet. Multi-Tech’s new voice/fax gateway technology allows voice and fax communication
to ride, with no additional expense, over your existing communications Internet, which has
traditionally been data-only. To access this free voice and fax communication, all you have to do is
connect the MultiVOIP to a phone or to your existing in-house phone switch, and then to your existing
Internet connection. Once configured, the MultiVOIP then allows voice and fax to travel down the
same path as your traditional data communications.
The MVP200 is designed with two voice/fax channels (which offer three voice/fax interfaces on each
channel), a 10 Mbps Ethernet LAN interface, and a command port for configuration. System
management is provided through the command port using bundled Windows® software which
provides easy-to-use configuration menus and a comprehensive Help system.
Figure 1-1. MultiVOIP

7
Chapter 1 - Introduction and Description
Preview of this Guide
This guide describes the MultiVOIP and tells you how to install and configure the unit. The
information contained in each chapter is as follows:
Chapter 1 - Introduction and Description
Chapter 1 describes the MultiVOIP. Front panel indicators, and back panel connector descriptions are
provided. In addition, a list of relevant specifications is provided at the end of the chapter.
Chapter 2 - Installation
Chapter 2 provides information on unpacking and cabling your MultiVOIP. The installation procedure
describes each cable connection.
Chapter 3 - Software Loading and Configuration
Chapter 3 provides instructions for software loading and initial configuration. The MultiVOIP software
disks are Windows® based. Later chapters, as well as the on-line Help, describe the MultiVOIP
software in more detail.
Chapter 4 - MultiVOIP Software
Chapter 4 describes the MultiVOIP software package designed for the Windows ® environment. This
chapter describes the software from an applications standpoint, and in so doing, not every screen is
shown, nor is each field within a screen defined. For explanations and parameters of each field within
a dialog box, refer to the Help.
Chapter 5 - Remote Configuration and Management
Chapter 5 provides procedures for changing the configuration of a remote MultiVOIP. Remote
configuration enables you to change the configuration of a unit by simply connecting two modems
between the two MultiVOIPs and remotely controlling the unit. Chapter 5 also describes typical client
applications (i.e., Telnet and Web-based management) used for remote configuration of the
MultiVOIP.
Chapter 6 - Warranty, Service and Tech Support
Chapter 6 provides instructions on getting service for your MultiVOIP at the factory, a statement of
the limited warranty, information about our Internet presence and user bulletin board service, and
space for recording information about your MultiVOIP prior to calling Multi-Tech’s Technical Support.

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MultiVOIP 200 User Guide
Typical Application
Before Voice Over IP (VOIP), voice over the Internet, a corporate office had a data connection to the
Internet and a voice connection to the public telephone network. With VOIP, the two networks can be
tied together. To accomplish this, a MultiVOIP is connected between the public telephone network
and the data network. A typical application for a MultiVOIP is shown in Figure 1-2.
Remote Branch
Office
Internet/Intranet
IP Network
Corporate Office
P
B
X
PSTN Connection
(T1/E1, PRI, etc.)
Web Server
Workstation
Workstation
MultiVOIP
IP Address
204.22.122.118
Mask 255.255.255.128
LAN
ISP
PSTN
Workstation
Workstation
LAN
Analog Connections
Channel 1: FXO
Channel 2: FXO
Router
IP Address 204.22.122.1
Mask 255.255.255.128
MultiVOIP
IP Address 202.54.39.100
Mask 255.255.255.240
ProxyServer
IP Address 202.54.39.97
Mask 255.255.255.240
#301
#302
ProxyServer Static
IP Address 209.96.211.90
512-4122
512-4123
4124
102
101
Router
4125
Proxy
Server
HUB
HUB
Figure 1-2. Typical VOIP Application
Now, to set up the VOIP network, a MultiVOIP at the corporate office is connected between the data
network and the corporate telephone switch (PBX). To connect the MultiVOIP to the data network, an
Ethernet cable is connected to the Ethernet port on the MultiVOIP and the other end of the cable is
plugged into a hub on the data network. On the phone side, two special adapter cables are
connected to the FXO jacks on the back of the MultiVOIP and run to two station lines on the phone
switch. These two lines on the PBX occupy phone extensions 4124 and 4125.
To set up a MultiVOIP at the remote branch office, the Ethernet jack on the MultiVOIP is connected to
the hub and two special adapter cables are connected between the FXS jacks on the MultiVOIP and
two analog phones.
To configure a MultiVOIP, the COM port of a PC is connected to the Command port on the MultiVOIP.
Configuration software is loaded on to your PC and your unique LAN parameters are established.
The configuration software is based on a standard Windows Graphical User Interface (GUI) which
simplifies your selection process to a single parameter group within a dialog box. For example, your
LAN IP parameters are contained on a single dialog box. You can configure the IP address and
mask for the MultiVOIP, and the gateway address for the corporate router, on the same dialog box.
Once the LAN parameters are established, you can set up the voice channel parameters.
The unique feature here is that both channels do not have to be configured the same way. One
channel could be connected to an extension line off the phone switch and the other channel
connected directly to your fax machine. In this situation, you would use the FXS interface which has
two options -- loop start and ground start. Loop start is generally the correct interface to use.

9
Chapter 1 - Introduction and Description
If you want a user to be able to call into a facility and then use the local phone capability to dial out to
the public phone network, you can choose either the FXO or E&M interface. If you chose the FXO
interface, you can connect to the station side of your phone switch and be able to use all the features
of your local phone system. If you want to call out on the local phone network while you are at a
remote branch office, you would dial the MultiVOIP at the corporate facility and then dial an outside
line to access the local phone network.
If you use the E&M interface, you have more control over call management. The E&M connection
uses the trunk side of the phone switch; therefore, to access a trunk line, you would dial the trunk’s
access number instead of an extension number. Also, the E&M interface has five signaling types that
are supported by the MultiVOIP.
Once you have mapped out your phone and Internet/Intranet connections, you can build your VOIP
phone directory database that connects your MultiVOIPs together. From the phone directory
database you can construct a VOIP phone book and a VOIP dialing directory. One phone directory
database is all that is needed for a VOIP network. This database can be built at one site and then
distributed to other sites. The database ties the voice/fax channels to phone equipment and the
ethernet port to your local area network.

10
MultiVOIP 200 User Guide
Before you construct the phone directory database, you must establish the Master-Slave relationship
between MultiVOIPs, which enables one multiVOIP (the “Master”) to control the database. The
database defines each phone number that can be dialed on the VOIP network. Each phone number
entry in the database identifies a phone connection. For example, Station Phone Number 101 is at
the corporate office. This phone number is connected to voice/fax channel 1 on the corporate office
MultiVOIP. Voice/fax channel 1 is connected to extension 4124 on the corporate phone switch. So if
a person in the corporate facility wants to access the VOIP network, they would merely dial extension
4124. However, if someone at the remote branch office wants to access the corporate phone system,
they have to dial Station Phone Number 101.
From the phone directory database you can build your VOIP dialing directory. For example, a
corporate user picks up a phone in his/her office and dials extension 4124. This connects them to
channel 1 on the corporate MultiVOIP. A second dial tone is heard, and they then dial VOIP
extension 301 which connects them to the remote branch office and enables a voice conversation to
take place over the VOIP network.
Similarly, a remote branch office employee can pick up the phone at 301 and dial VOIP extension
102. This routes the call to the corporate office MultiVOIP where a second dial tone is heard; the
remote branch office employee then dials extension 4122 and a conversation can take place between
the two phones.
To call from Call Process
Pick up any phone and dial an extension
number (e.g., 4124 or 4125). Upon hearing
the second dial tone, dial the Remote Branch
Office MultiVOIP (301).
Dialing
Sequence
4124
301
Pick up telephone and dial 101 or 102.
Upon hearing the second dial tone,
dial 4122 or, for the fax machine, 4123.
101
4122
VOIP Dialing Directory
Remote Branch
Office to
Corporate
Office
Corporate Office
to Remote
Branch Office
Figure 1-3. VOIP Dialing Directory

11
Chapter 1 - Introduction and Description
Front Panel Description
The front panel has three groups of LEDs that provide the status of the Ethernet connection
(Ethernet), Voice/Fax channels (Voice/Fax 1 and 2), and general status of the MultiVOIP (Boot and
Power). The front panel is shown in Figure 1-4, and a description of each LED follows.
Figure 1-4. Front Panel
Ethernet
RCV Receive Data indicator blinks when packets are being received from the local area network.
XMT Transmit Data indicator blinks when packets are being transmitted to the local area network.
LNK Link indicator lights when the Ethernet link senses voltage from a concentrator or external
device.
COL Collision indicator lights when a collision is detected on the Ethernet link.
Voice/Fax 1 and 2
FXS Foreign Exchange Station indicator lights when the voice/fax channel is configured for FXS
operation.
FXO Foreign Exchange Office indicator lights when the voice/fax channel is configured for FXO
operation.
E&M Ear and Mouth indicator lights when the voice/fax channel is configured for E&M operation.
FAX Fax indicator lights when there is fax traffic on the voice/fax channel.
XMT Transmit indicator blinks when voice packets are being transmitted to the local area network.
RCV Receive indicator blinks when voice packets are being received from the local area network.
XSG Transmit Signal indicator lights when the FXS-configured channel is off-hook, the FXO-
configured channel is receiving a ring from the Telco, or the M lead is active on the E&M
configured channel.
RSG Receive Signal indicator lights when the FXS-configured channel is ringing, the FXO-
configured channel has taken the line off-hook, or the E lead is active on the E&M-configured
channel.
Boot
The Boot indicator lights when the MultiVOIP is booting or downloading setup.
Power
The Power indicator lights when power is applied to the MultiVOIP.

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MultiVOIP 200 User Guide
Back Panel Description
The cable connections for the MultiVOIP are made at the back panel. Connectors include Power,
Command Port (RS232), Ethernet (10BASE-T), Voice/Fax Channels 1 and 2 (E&M, FXO and FXS).
The cable connectors are shown in Figure 1-5 and defined in the following groups.
Voice/Fax Channel 1
E&M FXS FXO
Voice/Fax Channel 2
FXO FXS E&M
1
0
Power
Ethernet RS232
Command
10Base-T
Figure 1-5. Back Panel
Power Connector
The Power connector is used to connect the external power supply to the MultiVOIP. The Power
connector is a 6-pin circular DIN connector. Astandard computer power cord connects the power
supply to a liveAC grounded outlet.
Command Connector
The Command connector is used to configure the MultiVOIP using a PC with an available serial port
and running Windows® software. The Command connector is an RJ-45 jack, and an adapter cable is
provided to convert to a standard serial port DB9 female connector.
10Base-T (Ethernet) Connector
The Ethernet 10Base-T connector is used to connect the MultiVOIP to a LAN using unshielded
twisted cable. This connector is an RJ-45 jack.
Voice/Fax Channel 1 and 2
The Voice/Fax Channel connectors include three options per channel: E&M, FXS and FXO.
E&M - This connector is used for connecting Voice/Fax Channel 1 or 2 to the E&M trunk on a PBX.
This connector is an RJ-45 jack.
FXS - This connector is used for connecting Voice/Fax Channel 1 or 2 to a station device; e.g., an
analog phone, a KTS phone system, or a fax machine. This connector is an RJ-11 jack.
FXO - This connector is used for connecting Voice/Fax Channel 1 or 2 to the station side of a PBX.
This connector is an RJ-11 jack.

13
Chapter 1 - Introduction and Description
Specifications
• One 1 Meg by 32 byte at 70 nanosecond SIMM is 4 Mb DRAM
Caution: SIMM speed and size cannot be mixed
• Two Megs of flash memory
Ethernet Port
• Single Ethernet Interface - 10Base-T (twisted pair) keyed RJ-45 connector.
Command Port
• Single 19.2K bps asynchronous Command Port using an RJ-45 to DB9 cable with a DB9
female connector
Voice/Fax Channel 1 and 2
• Two RJ-11 jacks (FXO and FXS)
• One RJ-45 jack (E&M)
Electrical/Physical
• Voltage - 115 VAC (Standard), 240 VoltsAC (Optional)
• Frequency - 47 to 63 Hz
• Power Consumption - 18 Watts
• Dimensions - 1.625" high x 6.175" wide x 9" deep
(4.13 cm x 15.68 cm x 22.86 cm)
• Weight - 2 pounds (0.9 kg)

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MultiVOIP 200 User Guide

Voice / Fax over IP Networks
Chapter 2 - Installation

16
MultiVOIP 200 User Guide
Installing Your MultiVOIP
The basic steps of installing your MultiVOIP network involve unpacking the units, connecting the
cables, and configuring the units using the included management software (MultiVOIP Configuration).
The recommended installation process includes three phases that, when completed, result in a fully
functional Voice Over IP network.A general description of each phase is provided below, and detailed
instructions are provided in Chapter 3, Software Loading and Configuration.
Phase 1: Configure and Install Your Master MultiVOIP
As the first step, the VOIP administrator configures the MultiVOIP designated as the “Master” unit.
This includes the assignment of a unique LAN IP address, subnet mask, and Gateway IP address; as
well as the selection of appropriate channel interface type for each of the Voice/Fax channels. Once
all connections have been made, the VOIP administrator configures the unit and builds the Phone
Directory Database that will reside with the Master unit.
Phase 2: Configure Your Slave MultiVOIP(s)
Once Phase 1 has been completed, the administrator moves on to configure the MultiVOIP(s)
designated as “Slave” units. Again, unique LAN IP addresses, subnet masks, and Gateway IP
addresses are assigned, and each Voice/Fax channel is configured for the appropriate channel
interface type. When this is done, the Phone Directory Database option is set to Slave, and the IP
address of the Master MultiVOIP is entered. Once all Slave units are configured, the process moves
on to Phase 3.
Phase 3: Deploy the VOIP Network
The final phase of the installation is deployment of the network. Through the first two phases, the
VOIP administrator controls configuration, so when the Slave MultiVOIPs are sent to their remote
sites, the remote site administrators need only to connect the units to their LAN and telephone
equipment.A full Phone Directory Database (supplied by the Master MultiVOIP) will be loaded into
their unit within minutes of being connected and powered up.
The final task of the VOIPAdministrator is to develop the VOIP Dialing Directory based on the Phone
Directory Database and telephone numbers of the interfacing telephone equipment; at which point, a
VOIP user can call any person on the VOIP network.
Safety Warning Telecom
1. Never install phone wiring during a lightning storm.
2. Never install phone jacks in wet locations unless the jacks are specifically designed for wet
locations.
3. This product is to be used with UL and cUL listed computers.
4. Never touch uninsulated phone wires or terminals unless the phone line has been
disconnected at the network interface.
5. Use caution when installing or modifying phone lines.
6. Avoid using a phone (other than a cordless type) during an electrical storm. There may be a
remote risk of electrical shock from lightning.
7. Do not use the phone to report a gas leak in the vicinity of the leak.
8. To reduce the risk of fire, use only No. 26 AWG or larger Telecommunication line Cord.

17
Chapter 2 - Installation
Unpacking Your MultiVOIP
Remove all items from the box. (See Figure 2-1.)
MADE IN U.S.A
MADE IN U.S.A
Figure 2-1. Unpacking
Safety Warnings
Caution: Danger of explosion if battery is incorrectly replaced.
A lithium battery on the circuit board provides backup power for the time keeping capability. The battery has an estimated life
expectancy of ten years.
When the battery starts to weaken, the date and time may be incorrect. If the battery fails, the board must be sent back to
Multi-Tech Systems for battery replacement.
The E&M, FXS, and Ethernet ports are not designed to be connected to a Public Telecommunication Network.
Valid VOIP Network Connections
The following VOIP network connections can be made at this time:
• FXS to FXS
• FXS to E&M
• FXS to FXO
• E&M to E&M
also,
• FXO to FXO (New)

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MultiVOIP 200 User Guide
Cabling Your MultiVOIP
Cabling your MultiVOIP involves making the proper Power, Command Port, and Internet connections.
Figure 2-2 shows the back panel connectors and the associated cable connections. The Cabling
Procedure has step-by-step instructions for cabling your MultiVOIP.
Voice/Fax Channel
1 & 2 Connections
Network Connection
Power Connection
FXS
E&M FXO
PSTN
Command Port Connection
Hub
PBX
Voice/Fax Channel 1
E&M FXS FXO
Voice/Fax Channel 2
FXO FXS E&M
1
0
Power
Ethernet RS232
Command
10Base-T
Figure 2-2. Cable Connections
Note: Before starting to cable your MultiVOIP, perform the E&M Jumper Block Positioning
Procedure if either voice/fax channel (1 or 2) will be connected to an E&M trunk that is a Type
1,3,4, or 5 rather than a Type 2 (the default).
Cabling Procedure
1 Using the supplied cable, connect the power supply to a liveAC outlet, then plug the power
supply into the MultiVOIP as shown in Figure 2-2. The power connector is a 6-pin circular
DIN connector.
2 Connect the MultiVOIP to a PC using the RJ-45 to DB9 (female) cable provided with your
unit. Plug the RJ-45 end of the cable into the Command port of the MultiVOIP and connect
the other end to the PC serial port you’re using. See Figure 2-2.
3 Connect a network cable to the Ethernet 10Base-T connector on the back of the MultiVOIP.
Connect the other end of the cable to your network.
4 If you are connecting a station device; e.g., analog telephone, fax machine, or Key Telephone
System (KTS); to your MultiVOIP, connect the smaller end of a special adapter cable (sup-
plied) to the Voice/Fax Channel 1 FXS connector on the back of the MultiVOIP and the other
end to the station device.
If you are connecting a PBX extension to your MultiVOIP, connect the smaller end of a special
adapter cable (supplied) to the Voice/Fax Channel 1 FXO connector on the back of the
MultiVOIP and the other end to the PBX extension.
If you are connecting an E&M trunk from a telephone switch to your MultiVOIP, connect one
end of an RJ-45 phone cord to the Voice/Fax Channel 1 E&M connector on the back of the
MultiVOIP and the other end to the trunk. Note: Appendix B has a pinout diagram for the E&M
back panel connector on the MultiVOIP.

19
Chapter 2 - Installation
5 Repeat the above step to connect the remaining telephone equipment to each Voice/Fax
Channel on your MultiVOIP.
6 Turn on power to the MultiVOIP by setting the power switch on the back panel to the 1 (up,
On) position. Wait for the Boot LED on the MultiVOIP to go Off before proceeding. This may
take a couple of minutes.
Proceed to the Chapter 3, Software Loading and Configuration, to load the MultiVOIP software.

20
MultiVOIP 200 User Guide
E&M Jumper Block Positioning Procedure
Each voice/fax channel on the MultiVOIP has a separate E&M jumper block, located near the jacks on the back panel of the
MultiVOIP. Each jumper block has 8 pairs of pins with a jumper plug on three adjacent pairs of pins. The jumper plug must be
centered on the E&M type number (see Figure 2-3) that matches the E&M connection for that channel. Perform the follow-
ing procedure if you need to move the E&M jumper block from its default (Type 2) position.
1 Ensure that the external power supply is disconnected from the MultiVOIP.
2 Turn the MultiVOIP upside down and remove the cabinet mounting screw at the center back of
the cabinet.
3 Turn the MultiVOIP right side up, then slide the base out the rear of the cabinet.
Note: To change a jumper position, lift the jumper plug up off the jumper block, then move it to
the new position, ensuring that the middle jumper of the jumper block is centered on the E&M
type number (1,3; 4; or 5) as shown on Figure 2-3. (Note: Numbers are not on the board.)
Jumper Blocks
In Position 2
(Default)
Note: Markings do not appear on board.
Back Panel Connectors
2
2
Channel 2 Channel 1
Alternate Positions
4
5
1,3
Figure 2-3. E&M Jumper Block Positions
4 Change the jumper block position for any voice/fax channel to be connected to an E&M trunk
that is not a Type 2 (the default position).
5 Slide the base all the way into the cabinet until it stops.
6 Turn the MultiVOIP upside down and replace the cabinet mounting screw that was removed in
step 2.
7 Turn the MultiVOIP right side up, then perform the cabling procedure.