Multitech Multivoip 100 Model Mvp120 Standalone Voice/ip Gateway Quick Start Guide

							31 Configuring the MultiVOIP
You have completed configuration of the Master MVP120.
The voice channel you have set up is labeled Hunt Group
#1. If a call from an H.323 endpoint (a MultiVOIP or a
stand-alone H.323 endpoint) to Phone Number 101 is
unable to be connected, it will automatically connect to the
next available phone number in Hunt Group #1, such as
Phone Number on a Slave MultiVOIP.
5. Add all other phone numbers (Slave units and stand-alone
units) to the Phone Directory database. To add a Channel
of a Slave MultiVOIP, click Add. The Add/Edit Phone
Entry dialog box displays again.
6. Enter the phone number for the Slave MultiVOIP in the
Phone Number box.
7. Click in the Description box. Enter a remote MultiVOIP
phone number description for the Voice/Fax Channel.
8. In the Station Identification group, select Hunt Group #2
from the Hunt Group list, enter the London Office’s IP
Address (202.056.039.100), and accept the H.323 industry
standard Port value (1720) used to communicate with
other H.323 endpoints. 
						

							MultiVOIP Quick Start Guide
32
9. Click OK and you are returned to the Phone Directory
Database dialog box which now includes the remote
phone number and related information in the Phone
Number list.
10. To configure a stand-alone endpoint (for example, a PC
with NetMeeting software), click Add and the Add/Edit
Phone Entry dialog box displays again. 
						

							33 Configuring the MultiVOIP
11. Enter the phone number for the  stand-alone endpoint in
the Station Information group Phone Number box. For
example, 301.
12. Click inside the Description box and enter a description
for the remote NetMeeting. For example, “Human
Resources Desk”.
Note: Because the H.323 endpoint is not a MVP120, the
Phone Directory database ignores the Voice Channel
entry. It does not matter what value is entered.
13. In the Station Identification group, select NO HUNT from
the Hunt Group list, enter the Human Resource Desk’s IP
Address (202.198.100.04) and accept the H.323 industry
standard Port value (1720) used to communicate with
other H.323 endpoints.
Note: This stand-alone was not configured as part of a
Hunt Group. However, depending on your requirements,
you could configure a stand-alone to be part of a Hunt
Group.
14. Click OK and you are returned to the Phone Directory
Database dialog box which now includes the stand-alone
phone number and related information in the Phone
Number list. 
						

							MultiVOIP Quick Start Guide
34
15. When you have finished, click OK to download the default
setup.
16. Click OK.  After the setup is written to the MVP120, the
unit reboots.
17. Check to ensure that the BOOT LED on the MVP120 is off
after the download is complete. This may take several
minutes as the MVP120 reboots.
At this time your master MVP120 is configured. Proceed to
the “Configuring Your Slave MVP120s” section. 
						

							35 Configuring MultiVOIP Slaves
Configuring Your Slave MVP120s
If the Proprietary Phonebook option on the Phone Directory
Database dialog box was enabled, then you will need to
configure all remote H.323 endpoints as “Slave” units. For
example, the MVP120 at the company’s subsidiary office in
London would need to be configured as a “Slave”.
CAUTION: If you are installing a MVP120 behind a Firewall,
the Firewall must support H.323. Refer to your Firewall user
documentation to enable H.323 support.
1. Disconnect the PC from the Command port of the Master
MVP120 and connect it to the Command port on the Slave
MVP120.
2. From your desktop, click Programs I MultiVOIP 100 I
MultiVOIP 100 Configuration. The Main menu displays.
3. Click IP to display the IP Setup dialog box. 
						

							MultiVOIP Quick Start Guide
36
Select the Enable Diffserv check box if you have routers
that support Diffserv (sometimes called IP Precedence).
This feature gives priority to voice packets so they are not
delayed because of large data files being downloaded.
The default Frame Type is TYPE_II. If this does not match
your IP network, select the Frame Type from the Frame
Type list. The Frame Type choices are TYPE_II and
SNAP.
4. In the Port Address group, enter the IP Address and IP
Mask. In the Gateway Address group, enter the gateway
IP address for the slave unit.
The IP Address is the unique IP address that you assign to
the MVP120, and the Gateway Address is the IP address
of the device (such as a network router) connected to the
Internet/Intranet.
Click OK when you are finished. The Main menu displays.
5. From the Main menu, click Voice Channel to display the
Channel Setup dialog box. The Channel Setup dialog
box displays. The four tabs in this dialog box define the 
						

							37 Configuring MultiVOIP Slaves
channel interface, voice/fax parameters, Billing/Misc
parameters, and regional telephone parameters for the
channel.
Feature options are enabled or disabled according to the
interface type. 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 is 2 seconds.
6. The Ring Count FXO box enables you to set the number
of rings received before the FXO interface answers the
call. The default setting is 2 rings.
Note: Zero (0) means incoming calls will not be answered. 
						

							MultiVOIP Quick Start Guide
38The 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.
For FXO-to-FXO communications, you can enable a
specific kind of FXO disconnect: Current Loss, Tone
Detection, or Silence Detection. Check with your in-
house phone personnel to verify the type of disconnect to
use. If Current Loss is checked, the VOIP will hangup
when it detects a loss of current on the FXO (phone) port.
For tone detection, select from the lists one or two tones
that will cause the line to disconnect. The person hanging
up the call must then press the key or keys that produce
those tones to hangup a call. For silence detection, select
One Way or Two Way, then set the timer for the number
of seconds of silence before disconnect. The default value
of 15 seconds may be shorter than desired for your
application.
7. 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. 
						

							39 Configuring MultiVOIP Slaves
8. 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.  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 drop-
down lists in the DTMF Gain group.
Note: Only change the DTMF gain under the direction of
Multi-Tech Technical Support supervision.
9. 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. 
						

							MultiVOIP Quick Start Guide
40Note: If  the Automatic Coder is selected, enter the
bandwidth in the Max Bandwidth from the list. Check with
your VOIP administrator to determine how much
bandwidth is available.
10. The Fax group enables you to send/receive faxes. You
can set the maximum baud rate for faxes and the fax
volume in the two lists and change the jitter value in
milliseconds.
When receiving fax packets from a remote MultiVOIP, 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 MVP120 uses a Jitter
Buffer. The Jitter Value box allows the MVP120 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 voice/fax
channel, you can disable faxes in the Fax group.
11. 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 selected. If silence compression is
enabled, the MVP120 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 for the Voice/Fax Channel. If echo
cancellation is enabled, the MVP120 will remove echo-
delay which improves the quality of sound.