Multitech Multivoip 100 Model Mvp110 Voice/fax Over Ip Networks User Guide

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Installing Your MVP110 Software
The following installation procedures do not provide every screen or option in the process of installing
the MVP110 software. It is assumed that a technical person with a thorough knowledge of Windows
and the software loading process is doing the installation. Once you have installed the software, you
will be instructed on how to configure your MVP110, and finally, on how to deploy your MVP110.
Additional information on the MVP110 software is provided in Chapter 4, MVP110 Software, and in
the online Help.
Note: The phonebook directory configuration process is different depending on whether or not you
have an enabled H.323 Gatekeeper resident in your network. The section on “Configuring Your
MVP110” will explain these differences.
The MVP110 software and User Guide are contained on the MVP110 CD.  The CD is auto-
detectable, so when you insert it into your CD ROM drive it will start up automatically.  When you
have finished configuring your MVP110, you can view and print the User Guide by clicking on the
Install Manuals icon.
CAUTION: If you are installing a MVP110 behind a Firewall, the Firewall must support H.323. Refer
to your Firewall user documentation to enable H.323 support.
1. Make certain that your MVP110 has been properly cabled and that it is powered on.
2. Insert the MVP110 CD into a CD-ROM drive.  The CD is auto-detectable, so it starts
automatically.  It may take 10 to 20 seconds for the Multi-Tech Installation CD window to appear.
If the Multi-Tech Installation CD window does not appear automatically, click My Computer, then
right-click the CD-ROM drive icon, click Open, then click the Autorun icon.
3. When the Multi-Tech Installation CD window displays, click the Install Software icon and choose
H.323 compatible from the Select Software dialog box.   
						

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4. The MVP110 Setup welcome dialog box displays.
Press Enter or click Next to continue.
5. The Choose Destination Location dialog box displays. Follow the on-screen instructions.
You can either choose the Destination Location of your MVP110 software or select the default
destination by clicking Next. If you click Browse, you can select a different destination folder for the
MVP110 software.
6. In the Select Program Folder dialog box, select where you want the program file to be located.
Verify the path and click Next to continue.
7. The Copying program files window displays, followed by the MVP110 Setup dialog box. This
dialog box enables you to select the COM port of your PC that is connected to the Command port       
						

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of the MVP110. From the Select Port list, choose the COM port of your PC.
Click OK to continue.
8. The Setup Complete dialog displays.
Click Finish to continue.
9. The following message displays:
Click Ye s to continue.
10. The following message displays.
 Click Ye s to continue.         
						

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Configuring Your MVP110
The following steps provide instructions for configuring your MVP110. The configuration sequence includes IP
Protocol default setup, Channel setup, and Phone Directory Database setup. The Phone Directory Database
setup is configured differently depending on whether or not the Gatekeeper function is available and enabled on
the Phone Directory Database dialog box.
11. The IP Protocol Default Setup dialog box displays.
The default Frame Type is TYPE_II. If this does not match your IP network, select SNAP from
the Frame Type list. The available Frame Type choices are TYPE_II and SNAP.
12. In the Ethernet group, enter the IP Address, Subnet Mask, and Gateway Address unique to
your IP LAN.
The IP address is the unique LAN IP address that is assigned to the MVP110, and the Gateway
address is the IP address of the device connecting your MVP110 to the Internet.
Click OK when you are finished.
13. The Channel Setup dialog box displays. The four tabs in this dialog box define the channel
interface, voice/fax parameters, billing/miscellaneous parameters, and regional telephone
parameters.
The Inter Digit Time option defines the maximum amount of time that the unit will wait before
mapping the dialed digits to an entry in the Phone Directory Database. If too much time elapses
between digits, and the wrong numbers are mapped, you will hear a rapid busy signal. If this
happens, it will be necessary to hang up and dial again. The default setting is 2 seconds.
14. The Ring Count FXS window allows you to set the maximum number of rings output on the FXS
interface before hanging up and releasing the line to another call. The default setting is 8 rings.
Note: Zero (0) means no rings - caller hears a busy tone.
The Message Waiting Light check box must be selected on the originating and answering voice
channel.  This enables the number dialed to connect you to the appropriate voice channel, then
output that number on the voice channel.  This feature does not work FXS to FXS.     
						

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15. The Voice/Fax tab displays the parameters for the voice gain, DTMF (Dual Tone Multi-
Frequency) gain, voice coder, faxing, and advanced features such as Silence Compression,
Echo Cancellation, and Forward Error Correction.
16. You can set up the input and output voice gain so that the volume can be increased or
decreased. Input gain modifies the level of the audio coming in to the voice channel before it is
sent over the Internet to the remote MVP110.  Output gain modifies the level of the audio being
output to the device attached to the voice channel. Make your selections from the Input and
Output lists in the Voice Gain group. The valid range is +31dB to –31dB with a recommended/
default value of 0.
You can also set up the DTMF gain (or output level in decibels - dB) for the higher and lower
frequency groups of the DTMF tone pair. Make your selections in the lists in the DTMF Gain
group. When the DTMF Out of Band check box is selected, the unit reproduces the DTMF tones
instead of passing them through.
Note: Only change the DTMF gain under the direction of Multi-Tech Technical Support.
17. To change the voice coder, select the Manual option in the Coder group. Select the appropriate
coder from the Selected Coder list.
If you changed the voice coder, ensure that the same voice coder is used on the voice/fax
channel you are calling.  Otherwise, you will always get a busy signal.
Note: If you allow the Coder to be selected automatically, then you need to select the Max
Bandwidth from the list. Check with your Network Administrator to determine how much
bandwidth is available.
18. The Fax group enables you to send/receive faxes on the selected voice/fax channel. You can set
the maximum baud rate for faxes, the fax volume, and change the jitter value in milliseconds.
When receiving fax packets from a remote MVP110, it is possible for individual packets to be
delayed or received out of order due to traffic conditions on the network. To compensate for this
effect, the MVP110 uses a Jitter Buffer. The Jitter Value box allows the MVP110 to wait a user-
definable period of time, in milliseconds, for delayed or out of order fax packets. The range of
allowable Jitter Values is 0 to 400 with a default of 400 milliseconds.
If you do not plan to send or receive faxes on a given voice/fax channel, you can disable faxes in
the Fax group.
19. You can enable the voice/fax advanced features by selecting the Silence Compression, Echo
Cancellation, or Forward Error Correction options.
The Silence Compression option defines whether silence compression is enabled for the voice
channel. If Silence Compression is enabled, the MVP110 will not transmit voice packets when   
						

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silence is detected, thereby reducing the amount of network bandwidth that is being used by the
voice channel.
If Echo Cancellation is enabled, the MVP110 will remove echo which improves the quality of
sound.
The Forward Error Correction (FEC) feature allows some of the voice packets that were
corrupted or lost to be recovered. FEC adds an additional 50% overhead to the total network
bandwidth consumed by the voice channel.
20. The Billing/Misc tab displays the parameters for auto call, automatic disconnection, billing
options, and dynamic jitter buffer.
If you want to dedicate a local voice/fax channel to a remote voice/fax channel (so you will not
have to dial the remote channel), click the Auto Call Enable option in the Auto Call group. Then
enter the phone number of the remote MVP110 in the Phone Number box.
21. The Automatic Disconnection group provides three options to be used singly or in combination.
The Jitter Value defines the average inter-arrival packet deviation (in milliseconds) before the
call is automatically disconnected. Jitter is the inter-arrival packet deviation (phase shift of digital
pulses) over the transmission medium that causes voice breakup which can be particularly
disruptive to voice communications. The default setting is 20 milliseconds.  A higher value means
that the voice transmission will be more accepting of jitter.  A lower value will be less tolerant of
jitter.
Consecutive Packets Lost defines the number of consecutive packets that are lost after which
the call is automatically disconnected. The default setting is 30.
Call Duration defines the maximum length of time (in seconds) that a call remains connected
before the call is automatically disconnected. The default setting is 180 seconds.  A call limit of
three minutes may be too short for most configurations. Therefore, you may want to increase this
default value.
22. You can set billing options for inbound and/or outbound calls by checking them in the Billing
Options group and then entering the charge in cents per number of seconds.
23. A minimum and maximum set of values can be set for Dynamic Jitter Buffer. When receiving
voice packets from a remote MVP110, it is possible to experience varying delays between
packets due to traffic conditions on the network. This is called Jitter. To compensate for this
effect, the MVP110 uses a Dynamic Jitter Buffer. The Jitter Buffer allows the MVP110 to wait for
delayed voice packets by automatically adjusting the length of the Jitter Buffer between
configurable minimum and maximum values. An Optimization Factor adjustment controls how
quickly the length of the Jitter Buffer is increased when jitter increases on the network. The length   
						

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of the jitter buffer directly effects the voice delay between MVP110 gateways.
The Minimum Jitter Value default setting is 150 milliseconds, the Maximum Jitter Value default
setting is 300 milliseconds, and the Optimization Factor default setting is 7.
If your country/region is not the default USA, click the Regional tab and proceed to step 25;
otherwise, proceed to step 26 to begin building your phone directory database.
25. To change the Tone Pairs on the Regional tab, select your country or region from the Country/
Region list.  If your country or region is not listed, click Custom to define it.
The Tone Pairs group enables you to select and modify the parameters.  Click OK when
finished. Proceed to step 26 to begin building your phone directory database.
26. The Phone Directory Database dialog box displays with the Proprietary PhoneBook option
enabled and no phone numbers entries displayed in the database. This dialog box enables you to
select either the GateKeeper or Proprietary PhoneBook.  Once you have choosen the type of
Phone Book database, you can proceed to registering with a Gatekeeper in the following section
(entitled, Registering with a Gatekeeper Phone Directory).  If you are building a proprietary
phone book, proceed to Building a Proprietary Phonebook Directory.
Note: Each of these sections starts with a step 27.     
						

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Registering with a Gatekeeper Phone Directory
This section describes how to register H.323 endpoints with the Gatekeeper. The H.323 Gatekeeper
function resides at a PC acting as the central point for all calls within its zone and providing call
control services to registered endpoints. The Gatekeeper performs two important call control
functions: address translation from LAN aliases to IP addresses, and bandwidth management where
the network manager has specified a threshold for the number of simultaneous conferences on the
LAN.
 In a GateKeeper environment, you will be enabling the GateKeeper option, entering an IP address
for the GateKeeper, accepting the default port number, and if the GateKeeper network is servicing
Fast Start, accept the defaults in the Q.931 Parameters group. However, if this network zone is
primarily non-fast start supported, disable Use Fast Start.
27. Enable the Gatekeeper option
28. If the GateKeeper network employs Fast Start, then accept the Use Fast Start option (default).
You may have to verify this with the GateKeeper administrator.
29. Enter the Gatekeeper IP Address in the IP Address box.
30. Accept the default Port Number 1719.
CAUTION: The default setting for the Gatekeeper Port Number is 1719. This can be changed to
a different value by the Gatekeeper administrator.  If you decide to change the default Port
Number, you must use the same number on the Gatekeeper and all other H.323 endpoints.
31. When you are finished with this dialog box, click Add to begin building your phone directory
database. The Add/Edit Phone Entry dialog box displays.
32. Enter the unique phone number of the local device in the Phone Number box.     
						

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33. Leave the Description box blank.
34. Enter the Voice Channel number corresponding to the phone number entered.
35. Fill in the H.323 ID box with a description to identify the phone number. For this example, you
could enter “New York Office”.
36. Enter the IP Address of the MultiVOIP you are currently configuring in the IP Address box.
37. Click OK when you are finished and the Phone Directory Database dialog box displays with
your first entry in the window.
38. Click OK when you are finished.
39. Click OK to download setup.
40. The following dialog box displays.
Click OK to download default setup.
41. After the setup has been written to the MVP110, the unit is rebooted.
42. Verify that the BOOT LED on the MVP110 is off after the download completes. This may take
several minutes as the MVP110 reboots.       
						

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 Building a Proprietary Phonebook Directory
27. To build your proprietary MVP110 Phone Directory (in an H.323 environment without the
Gatekeeper option enabled), you will first need to select the Proprietary Phonebook option and
then configure the “Master” MVP110 and then the “Slave” MVP110s (or other H.323 endpoints).
Configuring the “Slave” MVP110 is discussed later in this chapter.
The first MVP110 to be configured is designated the “Master” and contains the proprietary
phonebook database. All subsequent MVP110s added to the proprietary phonebook database are
designated “Slaves.” The master database contains the phone numbers of all H.323 endpoints
available for communication on an IP network. This database is downloaded to each Slave
MVP110 as it comes online.
28. To configure the “Master” MVP110, make certain that the Proprietary Phonebook and Master
options are enabled. The Slave option, Master IP Address, and Send Status Report to Master
will be disabled. The Slave Status button displays the Slave VOIP Status dialog box used for
viewing phone number, IP address, status, and description of slave units (See “Configuring Your
Slave MVP110s” for details). Note: In the Q.931 Parameters group, Use Fast Start is checked
for compatibility with other H.323 devices that support Fast Start Capability.
Click Add to begin building your phone directory database. The Add/Edit Phone Entry dialog
box displays.
29. Enter the unique phone number of the local device in the Phone Number box and indicate that
the local device is connected to the Voice/Fax Channel in the Voice Channel box.