Multi-Tech Systems Multivoip 200 Model Mvp200 Voice/fax Over Ip Networks User Guide

							Voice / Fax over IP Networks
Chapter 4 - MultiVOIP Software 
						

							42 MultiVOIP 200 User Guide
Introduction
This chapter describes various features of the MultiVOIP software that enable you to change
(update) the configuration of your MultiVOIP. The basic configuration parameters were established
during the loading of the software (Chapter 3). The MultiVOIP software and configuration utilities
described in this chapter enable you to change that initial configuration as necessary.
The primary interface to the MultiVOIP software is a main menu (with MultiVOIP 200 Setup in the
title bar) with individual buttons that enable you to quickly and easily select a desired function. These
features are discussed in detail in the MultiVOIP Configuration section later in this chapter.
The other seven configuration utilities in the MultiVOIP 200 software provide additional functionality.
The 
Configuration port setup utility enables you to change the method by which you access the
MultiVOIP (i.e., through a direct connection of a PC to the Command Port on the MultiVOIP, or via
your Internet or LAN connection to the LAN port on the MultiVOIP).  The 
Date and Time setup utility
enables you to easily set the date and time used for data logging in the MultiVOIP. 
Download
Factory Defaults 
enables you to return the configuration to the original factory settings. Download
Firmware
 enables you to download new versions of firmware as enhancements become available.
Download User Defaults enables you to repeat the download user defaults process (part of
software installation) and update the MultiVOIP configuration with any necessary changes.
Download Voice Coders enables you to download voice coders to the MultiVOIP after repair or
upgrade. The 
Uninstall MultiVOIP Configuration utility removes most of the MultiVOIP 200
software from your PC.
The MultiVOIP software includes a context-sensitive Help system. Clicking a Help [ 
? ] button
anywhere in the graphical user interface (GUI) will display definitions and recommended values for
the buttons, options, and fields on that dialog box or menu. Clicking the green underlined text in the
Helps displays a popup box of related supplementary information for that topic. Clicking the Search
button (just below the menu bar) displays an Index tab with a list of 16 different topics. Click a topic,
then click the Display button to display the text associated with that topic.
Before You Begin
The MultiVOIP software operates in a Microsoft Windows® environment. The MultiVOIP 200 program
group contains icons for all the utilities described above. In Windows 95/98/NT, you can access the
individual utility programs either by clicking Start | Programs | MultiVOIP 200 | 
(utility), or by
double-clicking the utility icon in the MultiVOIP 200 program group shown here:  
						

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MultiVOIP Configuration
The MultiVOIP Setup menu consists of 10 buttons in which you can point and click, an Events
window in the middle of the menu, and a status bar at the bottom of the menu.  The 10 buttons allow
you to display and change the voice channels and IP protocol parameters, display and manage the
Phone Book listing, view statistics and call progress, and change features such as SNMP Agent,
Telnet Server, WEB Server, and assign a MultiVOIP password.
The Events window in the lower third of the Setup menu provides information about the boot process.
The status bar at the bottom of the Setup menu displays the current status of the unit and shows, for
example, if it is Running, the most recent date the unit was configured, the type of connection you
have to the unit, and your rights. It shows if your PC is connected directly to the command port of the
MultiVOIP  or is communicating with the Ethernet port.  The last field on the status bar is the Rights
field which displays either Read/Write or Read only rights. The first user to communicate with the
MultiVOIP has Read/Write rights that enable the user to view and/or change the configuration of the
MultiVOIP.  Any additional users have only Read Only rights and can only display the configuration of
the MultiVOIP but are prohibited from changing the configuration.  
						

							44 MultiVOIP 200 User Guide
Changing Channel Parameters
The channel parameters include the interface type and its options, voice and fax settings, and voice
communications for the country and region in which the MultiVOIP is operating. The Channel Setup
dialog box, accessed by clicking the Voice Channels button on the Setup men, has three tabs that
display the following categories of channel information -- Interface, Voice/Fax, and Regional.
Interface
The Interface tab defines the parameters related to the physical interface of the voice/fax channel.
Depending on the interface type selected (FXS, FXO, or E&M), other options on the interface tab will
turn grey (become inactive) indicating that they do not apply to the selected interface.  Max Dial
Digits, Inter Digit Time and Autocall features apply to all interface types.
The Max Dial Digits indicates the maximum number of digits the MultiVOIP will allow you to enter
when dialing one of the numbers in the Phone Directory Database.  As soon as you have entered this
number of digits, the MultiVOIP will immediately attempt to match the digits you have dialed with an
entry in the database.  The range for the Max Dial Digits is from zero to 16 digits with a default of five.
The Inter Digit Time (in milliseconds) option in the Dialing Options group defines the amount of time
the MultiVOIP waits between digits as they are entered by the user.  If this timer expires, the
MultiVOIP will immediately attempt to match the digits entered to an entry in the Phone Directory
Database. The range for this option is 200 to 10,000 with a default of 2,000.
The Auto Call option allows the local MultiVOIP to call a remote MultiVOIP without the user having to
dial a Phone Directory Database number.  As soon as you access the local MultiVOIP voice/fax
channel, the MultiVOIP immediately connects to the remote MultiVOIP that you identified in the
Remote MultiVOIP Phone Number field of this option.
FXS Interface
The FXS Interface is used to connect telephones, fax machines, key telephone systems, etc., to the
MultiVOIP.  In addition, you need to select either Loop Start or Ground Start.  Most of the equipment
mentioned will use Loop Start which is the default.
FXO Interface
The FXO Interface is used to connect PBX extensions or central office telephone lines.  You also,
need to select DTMF or Pulse dialing in the Regeneration field of the Dialing Options group.  If you  
						

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are unsure of the correct selection, contact the personnel in charge of your PBX or your local
telephone company to determine whether pulse or DTMF should be used.
E&M Interface
The E&M Interface is used to connect PBX E&M trunks.  You will need to select between Dial Tone or
Wink signaling and also between 2-wire and 4-wire mode.  If wink signaling is selected, the wink
timer field becomes active with a range from 100 to 350 milliseconds.  Contact the personnel in
charge of your PBX to determine the proper configuration of these settings.
FXO Disconnect On
The FXO Disconnect On option applies when two MultiVOIPs are used in an FXO-to-FXO
configuration.  When you have an FXO-to-FXO configuration, you need to determine the method of
terminating the call.  Three methods of terminating the call are provided:  Current Loss, Tone
Detection, or Silence Detection.  Current Loss is the preferred method.  Current Loss has to be
supported by your PBX or local telephone company.  Current Loss terminates the call when the PBX
or local telephone company switch detects a person hanging up the phone and opens the local circuit
for a minimum of 600 milliseconds.
Tone Detection disconnect method terminates the call when the party who wishes to disconnect
enters a one or two digit sequence on the telephone keypad.  Valid digits are zero to nine, *, #, and A
thru D.
Silence Detection can be silence in one direction or silence in both directions for a specified amount
of time.  The amount of time is defined by the entry in the Silence Timer.  The range of the Timer is
from one to 65535 seconds (roughly 18 hours).  The default is 15 seconds.
Voice/Fax
The Voice/Fax tab controls the voice coder, Fax settings, DTMF gain, and some miscellaneous
options.
The MultiVOIP supports many state-of-the art ITU (International Telecommunications Union) voice
coders. The Voice Coder drop-down menu enables you to select from a range of coders with specific
bandwidths. The higher the bps rate, the more bandwidth is used. The channel that you are calling  
						

							46 MultiVOIP 200 User Guide
has to have the same voice coder selected; otherwise, you will always get a Busy signal.
The Fax group enables a fax machine to transmit and receive faxes through the MultiVOIP. If a fax
machine is connected to one of the voice/fax channels, the Max Baud Rate should be set to match
the baud rate of the fax machine (refer to user documentation). The Fax Volume setting controls the
output level of the fax tones, and this setting should be changed only under the direction of Multi-
Tech’s Technical Support personnel (see Chapter 6 - Warranty, Service and Tech Support).
The DTMF Gain group controls the volume level of the digital tones sent out for Touchtone dialing.
The Gain High and Gain Low fields control the gain in dB (decibels) of the High and Low tones in the
tone pairs; the default gain values are -4 dB and -7 dB, respectively.  DTMF Gain should not be
changed except under supervision of MultiTech’s Technical Support.
Billing Options can be used to track the cost of Inbound and/or Outbound calls on any of the three
interfaces (FXO, FXS, or E&M).  The amount to be charged in cents is entered in the Charge (   )
Cents field together with the associated time duration in the Per (   )Seconds field.  While a given
call is active, the accumulated charges can then be viewed on the Call Progress dialog box. When
the call ends, the charges are transferred to a Log File that can be viewed by highlighting the call
event in the Log Entries dialog box and selecting Details.
The Authentication Option enables you to provide Password Protection on Inbound and/or
Outbound calls on any of the three interfaces (FXO, FXS, and E&M).  A password of up to 14
numeric characters can be assigned to either or both voice/fax channels. The required password
must then be entered from the device initiating a call over the protected voice/fax channel.
The Automatic Disconnect Option enables you to limit the duration of a call on any of the three
interfaces (FXO, FXS, or E&M). This function will hang up the call when a timer expires. The default
timer value of 15 seconds can be increased to any value up to 65535 seconds (roughly 18 hours).
Regional
The regional tab controls the voice communications for the country or region in which the MultiVOIP
is being used.
From the Country/Region drop-down list you can select the country or region for which you are
configuring the MultiVOIP. The Tone Pairs group always displays the tones used in the country or
region currently selected. In addition to Australia, Central America, Chile, Europe, France, Japan, UK,
and USA, there is a Custom selection (with defaults identical to USA) that will make the Custom
button active. Clicking the Custom button enables you to edit the Tone Pairs and establish custom
sets of tone pairs for Dial Tone, Ring, and Busy on a Custom Tone Pair Settings dialog box.
The Pulse Generation Ratio group contains two ratios: the 60/40 is for the USA, and the 67/33 ratio
is for international applications.  
						

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Changing the Phone Directory Database
The Phone Directory Database dialog box displays all the phone numbers in your MultiVOIP network.
The database displays the phone numbers in numerical order with the IP Address, Channel
assignment, and Description.
Access this database by clicking the Phone Book button on the Main MultiVOIP menu. You can add,
delete, or edit any entry in the database and you can change the master -  slave relationship of the
database.  The Slave Status displays status of all the slave units in your VOIP network.  The Phone
Number of each slave is displayed with its IP Address, current line status, and the description of the
phone number.
The phone number does not have to be a conventional phone number; for example, it does not have
to be 717-5565. It can be a single digit or several digits, except it cannot be longer than the entry in
the Max Dial Digits field in the Dialing Options group of the Channel Setup dialog box. For example,
you could enter a phone number of 101 with a description of Jerry’s Desk, the phone number is
assigned to channel 1. If you want the call to be rolled over to a second channel, you can enable
Permit Hunting.  If the assigned channel is busy, then the call is rolled over to the next channel.
The MultiVOIP Identification group defines the type of addressing (Dynamic or Static) for the
master and slave units for their respective Phone Numbers.  The Phone Numbers assigned to the
master MultiVOIP have to be Static addressing and the Phone Numbers assigned to the slave
MultiVOIP can be either dynamic or static depending on whether a Proxy Server is providing the
connection to the Internet.  If a Proxy Server is in front of the MultiVOIP providing the Internet
connection and the Proxy Server is using dynamic addressing (i.e., the ISP is assigning the Proxy   
						

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Server IP address), then this slave MultiVOIP will be defined as using Dynamic addressing and the
IP Address field in the Identified By group will grey out (be inactive).
If a Proxy Server with a static IP address is in front of the slave MultiVOIP, then the Identified By IP
Address field must contain the address of the Proxy Server.
If the slave MultiVOIP is connected directly to the Internet, then its addressing mode must be Static.
If the slave unit is using Static addressing, then the IP Address field in the Identified By group has to
contain the Static IP address of the slave MultiVOIP.
The Ethernet Node ID is a 12-digit Identification Number assigned to each unit.  This Ethernet Node
ID number is a hardware identification number that is affixed to each unit during the manufacturing
process and cannot be changed.  This ID number (for example, 0008005xxxxx) is located on an ID
plate attached to every unit.  This ID number has to be entered in the Ethernet Node ID field for the
telephone number entered in the Phone Number field.  If you are assigning a Phone Number for a
slave unit, the Ethernet Node ID has to be for that slave unit.
If this plate is damaged or missing, you can also obtain the ID number by Telneting to the unit. From
the MultiVOIP Telnet Server menu, choose the Voice over IP Configuration option which takes you to
the Main Menu.  In the Main Menu, choose System Information and the ID number is presented in the
Ethernet Port Address of the System Information menu.
When you enter this information and click OK, the information is loaded into the phone directory
database.
To add a second entry, click Add(+) and the Add/Edit Phone Entry dialog box is again displayed.
The same data needs to be added for channel 2. After the two local entries are added to the
database, then you need to turn your attention to the entries for the remote MultiVOIPs. The same
data has to be added for each remote MultiVOIP.
To establish the phone directory database for a remote MultiVOIP, you do not have to enter phone
numbers, but you have to check the Slave option in the Database Type group. When you click the
Slave option, the Update Database From group becomes active. You need to enter the IP address of
the MultiVOIP that you established as the Master.  
						

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Changing IP Parameters
The IP Setup dialog box establishes the IP addressing for the local Ethernet LAN, defines the Internet
gateway address, and for a remote MultiVOIP the global-to-local IP address translation is defined on
the Proxy Setup tab. The IP Setup dialog box is accessed by clicking the IP button on the MultiVOIP
200 Setup menu.
When the IP Setup dialog box is displayed, the IP address of your MultiVOIP is displayed with its IP
Mask. The Gateway Address is the IP address of the device connected to the Internet. This
completes the fields in the IP Protocol Default Setup dialog box.
ProxyServer
The Proxy Setup tab is used when a ProxyServer is used to connect the LAN to the Internet. The
Proxy Setup dialog box is displayed by clicking the Proxy Setup tab in the IP Setup dialog box.
If a ProxyServer is used in a MultiVOIP network, an address translation takes place within the
ProxyServer to direct the phone call to the correct MultiVOIP.
When a MultiVOIP’s connection to the Internet is through a ProxyServer, the WAN port on the
ProxyServer must have a static registered IP address. Remote MultiVOIPs will only be able to
access a MultiVOIP located behind a ProxyServer at the static IP address. This static IP address will
be used in the Phone Directory Database when assigning directory numbers to this MultiVOIP.
The Global IP Address field in the Proxy Setup dialog box must contain the static IP address of the
WAN port of the ProxyServer. The Local IP Address field in the Proxy Setup dialog box must contain
the local IP address of the MultiVOIP. In this case the local IP address is not used in the Phone
Directory Database. There must be a unique static IP address on the Wan side of the proxy server for
each MultiVOIP located behind the proxy server.   
						

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Viewing Call Progress
The Call Progress dialog box displays the status of a call in progress. This dialog box is accessed
from the MultiVOIP 200 Setup menu by clicking the Call Progress button.
The ratio of Packets Lost versus Packets Received provides a general indication of the integrity of
the Internet connection. To reduce the frequency of lost packets, select a low-bit-rate coder, such as,
G.723 or Netcoder. In addition, enabling the Forward Error Correction option on the Voice/Fax tab on
the Channel Setup dialog box will enable the MultiVOIP to recover many of the lost packets.
The Jitter (ms) value indicates the mean deviation of the difference in packet spacing at the receiver
compared to the sender for a pair of packets.