Multi-Tech Systems Mvp400, Mvp800 Voice/fax Over Ip Networks User Guide

							21 Chapter 2 - Installation
E&M Jumper Block Positioning Procedure
A jumper block exists for each voice/fax channel.  The jumper block is to the right of each set of
channel jacks.  The jumper block contains 8-pairs of pins.  The jumper plug fits over three pairs of
pins on the jumper block.  The E&M type number is labeled on the pc board.  The jumper plug needs
to be centered on the E&M type number.  Perform the following procedure to change E&M jumper
position.
1. Ensure that power is removed from the MultiVOIP
2. Remove the front panel by loosening the two Phillips quarter turn screws.
3. Slide the top cover back off the chassis to expose the rear panel.
4. To change a jumper position, lift the jumper plug up off the jumper block and move to the new
position, ensuring that the center jumper is centered on the E&M type number.
4
;)


						

							22 MultiVOIP 400/800 User Guide 
						

							Chapter 3 - Software Loading and Configuration 
						

							24 MultiVOIP 400/800 User Guide
Installing Your MultiVOIP Software
The following installation procedures do not provide every screen or option in the process of installing
the MultiVOIP 400/800 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 MultiVOIP 400/800, and finally, on how to
deploy your MultiVOIP 400/800. Additional information on the MultiVOIP 400/800 software is provided
in the on-line 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
MultiVOIP 400/800” will explain these differences.
The MultiVOIP 400/800 software and User Guide are contained on the MultiVOIP 400/800 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 MultiVOIP 400/800, you can view and print the User Guide
by clicking on the Install Manuals icon.
CAUTION: If you are installing a MultiVOIP 400/800 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 MultiVOIP 400/800 has been properly cabled and that it is powered on.
2. Before you insert the MultiVOIP 400/800 CD into your CD ROM, you need to determine how you
will configure your MultiVOIP 400/800, via the LAN or connected directly to the Command port.  If
you are configuring your MultiVOIP 400/800 via your network, you need to have your PC
configured for network communications (i.e., TCP/IP stack loaded). Your PC and the MultiVOIP
400/800 must be on the same physical LAN segment.
Insert the MultiVOIP 400/800 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 screen to appear.
If the Multi-Tech Installation CD Screen does not appear automatically, click My Computer, then
right click the CD ROM drive icon, click Open, and then click the Autorun icon.
3. When the Multi-Tech Installation CD Screen is displayed, click the Install Software icon.   
						

							25 Chapter 3 - Software Loading and Configuration
4. The MultiVOIP 800 Setup welcome screen is displayed.
Press Enter or click Next > to continue.
5. The Choose Destination Location dialog box is displayed. Follow the on-screen instructions.
You can either choose the Destination Location of your MultiVOIP 400/800 software or select the
default destination by clicking Next >. If you click Browse,  you can select a different destination
folder for the MultiVOIP 400/800 software.
6. The Select Program Folder dialog box enables you to choose where you want the program file
to be located.
Verify the path and click Next > to continue.       
						

							26 MultiVOIP 400/800 User Guide
7. The Copying program files ... screen is displayed followed by the MultiVOIP 800 Setup dialog
box. This dialog box enables you to select the COM port of your PC that is connected to the
Command port of the MultiVOIP 400/800. From the Select Port drop-down list, choose the COM
port of your PC.
Click OK to continue.
8. The Setup Complete dialog is displayed.
Click Finish to continue.
9. The following message is displayed:
Click Ye s to continue.
10. The following message is displayed.
 Click Ye s to continue.         
						

							27 Chapter 3 - Software Loading and Configuration
Configuring Your MultiVOIP 400/800
The following steps provide instructions for configuring your MultiVOIP 400/800. 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 (See
Step 26).
11. The IP Protocol Default Setup dialog box is displayed.
The default Frame Type is TYPE_II. If this does not match your IP network, change the Frame
Type by clicking the drop-down arrow and selecting SNAP. 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 in the corresponding fields.
The IP address is the unique LAN IP address that is assigned to the MultiVOIP 400/800, and the
Gateway address is the IP address of the device connecting your MultiVOIP 400/800 to the
Internet.
Click OK when you are finished.
13. The Channel Setup dialog box is displayed. The four tabs in this dialog box define the channel
interface, voice/fax parameters, billing/miscellaneous parameters, and regional telephone
parameters for each channel.
Configure each channel for the type of interface you are connecting to.  The Interface tab defaults
to Channel 1 in the Select Channel field. To change the channel number, click the drop-down
arrow and the list of channels is displayed. Highlight the channel you want to configure.
Note: Feature options are enabled or disabled (grayed out) according to the interface type that
you select. The one option available for all interface types is the Inter Digit Time option. This
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.     
						

							28 MultiVOIP 400/800 User Guide
14. The Interface group defaults to FXS (Loop Start).  Select the interface option that corresponds
to the interface type being connected to the Voice/Fax Channel 1 jack on the back panel of the
MultiVOIP 400/800.
FXS (Loop Start): If a station device; e.g., an analog telephone, fax machine, or KTS (Key
Telephone System) is connected to the Voice/Fax connector on the back of the unit, FXS (Loop
Start) will likely be the correct Interface.
FXS (Ground Start): If the station device uses ground start, then choose the FXS (Ground Start)
option. Refer to the device’s user documentation.
For both FXS Loop Start and FXS Ground Start , 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.
FXO: If you are using an analog extension from your PBX, then choose the FXO option.  Check
with your in-house phone personnel to verify the connection type.
If FXO is selected, the Dialing Options Regeneration, Flash Hook Timer, and Ring Count
groups are enabled.  Check with your local in-house phone personnel to verify whether your local
PBX dial signaling is Pulse or tone (DTMF). Then, set the Regeneration option accordingly. The
Flash Hook Timer allows you to enter the time, in milliseconds, for the duration of the flash hook
signals output on the FXO interface. The default setting is 600 milliseconds. The Ring Count
FXO window allows you to set the number of rings received on the FXO interface before the
MultiVOIP 400/800 answers the incoming call. The default setting is 2 rings.
Note: Zero (0) means that the MultiVOIP 400/800 never answers.
For FXO-to-FXO communications, you can enable a specific type of FXO Disconnect; Current
Loss, Tone Detection, or Silence Detection. (Check with your in-house phone personnel to
verify the preferred type of disconnect to use.) Enabling Tone Detection activates the
Disconnect Tone Sequence options. For Disconnect Tone Sequence, you can select from drop-
down lists either one or two tones that will cause the line to be disconnected; the person hanging
up a call must then hit the key(s) that will produce those tones. For Silence Detection, select
One Way or Two Way, then set the timer for the number of seconds of silence before disconnect.
Note that the default value of 15 seconds may be shorter than desired for your application.
E&M: If you are connecting to an analog E&M trunk on your PBX, then choose the E&M interface
option to enable the E&M Options group.  Check with your local in-house phone personnel to
determine if the signaling is Dial Tone or Wink and if the connection is 2-wire or 4-wire.  If Wink
signaling is used, then the Wink Timer is enabled with a default of 250 milliseconds.  The range
of the Wink Timer is from 100 to 350 milliseconds. Consult with your local in-house phone
personnel for this timer setting.
Note: After configuring a given channel, you can copy that channel’s configuration by clicking the
Copy button and everything on the Interface tab will be copied to the designated channel.
15. Repeat the above step to configure the interface type for each voice/fax channel. 
						

							29 Chapter 3 - Software Loading and Configuration
16. 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.
17. 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 MultiVOIP 400/800; and, 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 drop-down 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 drop-down lists in the
DTMF Gain group.
Note: Only change the DTMF gain under the direction of Multi-Tech Technical Support
supervision.
18. To change the voice coder, first select the channel by clicking the Select Channel down arrow
(highlighting the channel number) then click Manual in the Coder group. To select the appropriate
coder, click the Selected Coder down arrow and highlight your new voice coder entry.
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 drop-down list. Check with your VOIP administrator to determine how much
bandwidth is available.
19. The Fax group enables you to send/receive faxes on the selected voice/fax channel. You can set
the maximum baud rate for faxes and the fax volume in the two drop-down lists and change the
jitter value in milliseconds.
When receiving fax packets from a remote MultiVOIP 400/800, 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 MultiVOIP 400/800 uses a Jitter Buffer. The Jitter Value field allows the MultiVOIP
400/800 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 50 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.   
						

							30 MultiVOIP 400/800 User Guide
20. You can enable the voice/fax advanced features by clicking (checking) the silence compression,
echo cancellation, or forward error correction options.
The Silence Compression option defines whether silence compression is enabled (checked) for
this voice channel. If silence compression is enabled, the MultiVOIP 400/800 will not transmit
voice packets when silence is detected, thereby reducing the amount of network bandwidth that
is being used by the voice channel.
The Echo Cancellation option defines whether echo cancellation is enabled (checked) for this
voice channel. If echo cancellation is enabled, the MultiVOIP 400/800 will remove echo which
improves the quality of sound.
The Forward Error Correction (FEC) option defines whether forward error correction is enabled
(checked) for this voice channel. The 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.
Note: After configuring a given channel, you can copy that channel’s configuration by clicking the
Copy button and everything on the Voice/Fax tab will be copied to the designated channel.
21. 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 MultiVOIP 400/800 in the Phone Number field.
22. 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.