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

							31 Chapter 3 - Software Loading and Configuration
30. The Description box is optional, but can be useful in associating the channel to the extension. If
you wish, enter a description of your local phone number. This description serves to identify the
phone number you entered in the previous step.  Normally the “Master” MVP110 resides at the
entity’s main office; therefore, for this example you could enter a description such as “New York
Office”).
31. The Station Identification group includes a Hunt Group list. This list enables you to indicate
which Hunt Group you want the phone number to be associated with; or, you can select NO
HUNT if you don’t want this entry to participate in hunting.  Hunting is a series of telephone lines
organized in such a way that if the first line is busy the next line is hunted and so on until a free
line is found. For this example, assign the phone entry to HUNT GROUP #1.
Once you have assigned this entry to a Hunt Group (or NO HUNT), you must enter the IP
Address of the Master MVP110 in the IP Address box.
Note: The Port box becomes active as you begin to enter the IP Address. The entry is the H.323
industry standard Port value (1720) used to communicate with other H.323 endpoints.
32. Click OK to return to the Phone Directory Database dialog box. It now includes phone number,
destination details, and description.
33. Add all other phone numbers (slave units and standalone units) to the Phone Directory database.
To add a channel of a slave MultiVOIP, click Add and the Add/Edit Phone Entry dialog box
displays.     
						

							32 Chapter 3 - Software Loading and Configuration
34. Enter the phone number for the MultiVOIP in the Station Information group Phone Number
box.
35. Click inside the Description box and enter a description for the remote MVP110 phone number
for the Voice/Fax Channel.
36. 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.
37. Click OK and you are returned to the Phone Directory Database dialog box which now includes
the second number and related information in the Phone Number list.
38. To configure a stand-alone endpoint (a PC with NetMeeting software), click Add and the Add/
Edit Phone Entry dialog box displays again.
39. Enter the phone number for the  stand-alone endpoint in the Station Information group Phone
Number box.  For example, 301.
40. Click inside the Description box and enter a description for the remote MVP110 phone number.
For example, “Human Resources Desk”.
Note: Because the H.323 endpoint is not a MVP110, the Phone Directory database ignores the
Voice Channel entry.  It does not matter what value is entered.
41. In the Station Identification group, select NO HUNT from the Hunt Group list,  enter the
Human Resource Desk’s IP Address 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.   
						

							33 Chapter 3 - Software Loading and Configuration
42. 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.
43. When you have finished, click OK to download the setup configuration to the MVP110.
44. Click OK.  After the setup is written to the MVP110, the unit reboots.
45. Verify that the BOOT LED on the MVP110 is off after the download is complete. This may take
several minutes as the MVP110 reboots.
At this time your master MVP110 is configured. Proceed to the “Configuring Your Slave
MVP110s” section.       
						

							34 Chapter 3 - Software Loading and Configuration
Configuring Your Slave MVP110s
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
MVP110 at the company’s subsidiary office in London would need to be configured as a “Slave.”
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. Disconnect the PC from the Command port of the Master MVP110 and connect it to the
Command port on the Slave MVP110.
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.
Select the Enable Diffserv 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.     
						

							35 Chapter 3 - Software Loading and Configuration
The IP Address is the unique IP address that you assign to the MVP110, 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 Channels to display the Channel Setup dialog box. The
Channel Setup dialog box displays. The four tabs in this dialog box define the 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 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 is 2 seconds.
6. 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 counts.
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.
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 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. The     
						

							36 Chapter 3 - Software Loading and Configuration
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.
Note: Only change the DTMF gain under the direction of Multi-Tech Technical Support.
9. To change the voice coder, select the Manual 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.
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 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.
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 enabled for the voice
channel. If silence compression is enabled, the MVP110 will not transmit voice packets when
silence is detected, thereby reducing the amount of network bandwidth that is being used by the
voice channel.
This Echo Cancellation option defines whether echo cancellation is enabled for this voice
channel. If echo cancellation is enabled, the MVP110 will remove echo-delay 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.
The Billing/Misc tab displays the parameters for auto call, automatic disconnection, billing
options and dynamic jitter buffer.   
						

							37 Chapter 3 - Software Loading and Configuration
12. 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.
13. 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 packets.
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.
14. You can set billing options for inbound and/or outbound calls by selecting them in the Billing
Options group and then entering the charge in cents per number of seconds.
15. 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
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.
16. To change the Tone Pairs on the Regional tab, select your country or region from the Country/
Region list.
Note: If your country or region is not listed, click Custom to define it.
The Tone Pairs group enables you to select/modify the parameters according to choice.  Click
OK when finished and proceed to step 6 to begin building your phone directory database.
17. From the Main menu, click Phone Book to display the Phone Directory Database dialog box.   
						

							38 Chapter 3 - Software Loading and Configuration
Make certain the Proprietary Phonebook option is enabled and in the Database Type group,
click the Slave option. The Master IP Address field becomes active.
Note: After you have enabled the Slave option, the Slave Status button is replaced by the
Update button. Once your Phone Directory database has been established, you can click this
button to refresh the entries in the Phone Directory Database window.
18. Enter the IP address (204.022.122.118) of the New York Office MVP110 in the Master IP
Address box and enable the Send Status Report to Master so that status reports are sent to
the Master MVP110.
Note:  In a Dial-On-Demand (DOD) network, you should leave Send Status Report to Master
disabled. This allows the router to disconnect whenever there is no voice activity. Note that
Slaves with Send Status Report to Master disabled will show up as “Unknown” when viewing
Slave status on the Master.
19. Click OK to return to the Main menu.
20. Click Download Setup to write the new configuration to the slave unit. The Save Setup dialog
box displays.
21. Select the Save Current Setup as User Default Configuration check box and click OK. The
Writing Setup dialog box displays as the setup configuration is written to the MVP110.
22. Check that the Boot LED on the MVP110 is off after the download is complete. This may take
several minutes as the MVP110 reboots.
23. You are returned to the Main menu.
Your MVP110 is operational at this time.
Repeat the process for each of the slave units. When all slaves have been configured, go to
“Deploying the VOIP Network”.     
						

							39 Chapter 3 - Software Loading and Configuration
Deploying the VOIP Network
For a Proprietary Phone Directory database, the VOIP administrator can deploy the pre-configured slave
MVP110s to their remote sites. The remote site administrators need only connect power to the pre-configured
MVP110, connect the MVP110 to their Ethernet LAN and predefined telephone equipment, and then wait for the
phone directory database to be downloaded.
With the Gatekeeper option enabled on the Phone Directory Database dialog box, all MVP110s are configured
as “Master” and cannot be downloaded. In this case, each MVP110 Phone Book will be programmed with phone
numbers for its own channels. These phone numbers are registered with the H.323 Gatekeeper.  See the
“Registering with a Gatekeeper Phone Directory” section discussed earlier.
Remote Site Administrator
The following steps are for MVP110 H.323 endpoints. For non-MVP110 H.323 endpoints, refer to the
appropriate installation documentation.
1. Unpack your MVP110.
2. Connect one end of the power supply to a live AC outlet and connect the other end to the Power
connection on your MVP110 (See Figure 5).

)*$!
	$!



   	
  !	#
      

Figure 5.  Remote Site Cable Connection
3. Connect a network cable to the ETHERNET (RJ-45) connector on the back of your MVP110.
4. If you are connecting a station device such as an analog telephone, a fax machine, or a Key
Telephone System (KTS) to your MVP110, connect one end of an RJ-11 cable to the Phone
connector on the back of the MVP110 and the other end to the station device.
5. Turn on power to the MVP110 by placing the ON/OFF switch on the right side panel in the ON
position. Wait for the BOOT LED on the MVP110 to go off before proceeding. This may take a
couple of minutes.
6. At this time your VOIP network should be fully operational. Dial one of the sites in your network. 
						

							


	


Chapter 4 - MVP110 Software