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

							31 Chapter 3 - Software Loading and Configuration
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.
23. 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.
24. A minimum and maximum set of values can be set for Dynamic Jitter Buffer. When receiving
voice packets from a remote MultiVOIP 400/800, 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 MultiVOIP 400/800 uses a Dynamic Jitter Buffer. The Jitter Buffer allows the
MultiVOIP 400/800 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 MultiVOIP
400/800 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.
Note: After configuring a given channel, you can copy that channel’s configuration to the other
channel by clicking the Copy button. Everything on the Billing/Misc tab will be copied to the
designated channel.
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, click the Country/Region down arrow and
highlight your specific country or region.
Note: If your country or region is not listed, click the Custom button to define it.
The Tone Pairs group enables you to select/modify the parameters according to choice.  Click
OK when finished. Proceed to step 26 to begin building your phone directory database.
26. The Phone Directory Database dialog box is displayed. This dialog box enables you to add,
delete, edit phone entries, or print all entries currently in the Phone Directory Database, and view
the telephone numbers defined in each Hunt group. You can build a proprietary phonebook (Go
to step 27); or, if an H.323 Gatekeeper is available and enabled, you can register your phone
numbers with the Gatekeeper (Go to the following section “Registering with a Gatekeeper Phone
Directory”).   
						

							32 MultiVOIP 400/800 User Guide
Registering with a Gatekeeper Phone Directory
This section describes what a Gatekeeper is and 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 provides call control services to registered endpoints. The Gatekeeper
performs 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.
The Phone Directory Database dialog box is dispayed.
Enable the Gatekeeper option, enter the IP Address of the Gatekeeper, accept the Port default,
and then click the Add (+) button.
The Add/Edit Phone Entry dialog box is displayed.
The information provided in the Add/Edit Phone Directory dialog box depends on how the
Gatekeeper will be set up with the Gatekeeper administrator. Phonebook information can be
registered with the H.323 Gatekeeper in two ways:
a. If the Gatekeeper is set up to allow remote registration, enter the Phone Number, Description,
Channel,  H323 ID, the IP Address (optional), and accept the Port default.
Note: To avoid possible phone number and H323 ID duplication, you will need to contact the
Gatekeeper administrator and verify that these entries are unique.  An H323 ID is a unique
identifier (most often implemented in the form of an e-mail address) that represents the name of
the gateway with the name of the Gatekeeper appended to the end (e.g., [email protected]).     
						

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b. If the Gatekeeper does not allow remote registration, you must contact the Gatekeeper
administrator (by phone or e-mail) and provide the IP Address (mandatory) to be registered
(entered manually) by the administrator at the Gatekeeper site. This process is called pre-
registering.
Note: The Gatekeeper administrator assigns the H323 ID. Together (you and the Gatekeeper
administrator) determine the Phone Number and H323ID entries.
For both 1) remote registration and 2) pre-registration, enter the unique phone number of the
local device in the Phone Number field (e.g. 101) and indicate in the Voice Channel field that
the device is connected to Channel 1.
The Description field 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 identifies the phone
number you entered in the previous step. For this example, you could enter a description such as
“New York Office 1”.
CAUTION: The default setting for the Port Number Gatekeeper is 1720. 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.
Repeat this process for all H.323 endpoints in your network. Once all H.323 endpoints have been
entered, click OK on the Phone Directory Database dialog box and proceed to step 54.   
						

							34 MultiVOIP 400/800 User Guide
Building a Proprietary Phonebook Directory
27. To build your proprietary MultiVOIP 400/800 Phone Directory (i.e., in an H.323 environment
without the Gatekeeper option enabled), you will first need to enable (check) the Proprietary
Phonebook option and then configure the “Master” MultiVOIP 400/800 and then add the “Slave”
MultiVOIP 400/800s (or other H.323 endpoints). Configuring the “Slave” MultiVOIP 400/800 is
discussed later.
The first MultiVOIP 400/800 to be configured is designated the “Master” and contains the
proprietary phonebook database. All subsequent MultiVOIP 400/800s 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 down-
loaded to each Slave MultiVOIP 400/800 as it comes on-line.
28. To configure the “Master” MultiVOIP 400/800, make certain that the Proprietary Phonebook and
Master options are enabled. The Master IP Address, Send Status Report to Master, and RAS
Parameters group will be disabled (grayed out).
Note: 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
MultiVOIP 400/800s” for details).
Click Add (+) to begin building your phone directory database. The Add/Edit Phone Entry dialog
box is displayed.
29. Enter the unique phone number of the local device in the Phone Number field (e.g., 101) and
indicate that the local device is connected to Channel 1 in the Voice Channel field.     
						

							35 Chapter 3 - Software Loading and Configuration
30. The Description field 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 (e.g., normally the “Master” MultiVOIP 400/800
resides at the entity’s main office; therefore, for this example you could enter a description such
as “New York Office 1”).
31. The Station Identification group includes a Hunt Group drop-down 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.
Note: 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 MultiVOIP 400/800 in the IP Address field (e.g., 204.022.122.118).
Note: The Port field 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
(101), destination details (204.022.122.118 Channel 1), and description (New York Office 1).     
						

							36 MultiVOIP 400/800 User Guide
33. To configure Channel 2 on the Master MultiVOIP 400/800, click Add (+) and the Add/Edit Phone
Entry dialog box is displayed again.
34. Enter the phone number for the MultiVOIP 400/800 in the Station Information group Phone
Number field (e.g., 102).
35. Click inside the Description field and enter a description for the remote MultiVOIP 400/800
phone number for Channel 2. For example, “New York Office 2.”
36. In the Station Identification group, select HUNT GROUP #1 from the Hunt Group drop-down
list, enter the New York Office 2’s IP Address (204.022.122.118), 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.
You have completed configuration of the “Master” MultiVOIP 400/800. Both voice channels
belong to Hunt Group # 1. If a call from an H.323 endpoint (a MultiVOIP 400/800 or a standalone
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, i.e., Phone Number 102.     
						

							37 Chapter 3 - Software Loading and Configuration
38. At this point it is time to add all other phone numbers (slave units and stand-alone units) to the
Phone Directory database. To add Channel 1 of the Slave MultiVOIP 400/800, click Add (+) and
the Add/Edit Phone Entry dialog box is displayed again.
39. Enter the phone number for the “Slave” MultiVOIP 400/800 in the Phone Number field (e.g.,
201).
40. Click inside the Description field and enter a description for the remote MultiVOIP 400/800
phone number for Channel 1; for example, “London Office 1.”
41. In the Station Identification group, select HUNT GROUP #2 from the Hunt Group drop-down
list, enter the London Office 1’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.
42. 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.     
						

							38 MultiVOIP 400/800 User Guide
43. To add Channel 2 of the Slave MultiVOIP 400/800, click Add (+) and the Add/Edit Phone Entry
dialog box is displayed again.
44. Enter the phone number for the remote (Slave) MultiVOIP 400/800 in the Station Information
group Phone Number field (e.g., 202).
45. Click inside the Description field and enter a description for the remote MultiVOIP 400/800
phone number for Channel 2. For example, “London Office 2.”
46. In the Station Identification group, select HUNT GROUP #2 from the Hunt Group drop-down
list, enter the London Office 2’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.
Note: Depending on your requirements, you may want calls that cannot make a connection to
London Office 1 (Hunt Group #2) to roll over to the New York office instead. In this case, you
would configure that phone entry to be listed as a member of HUNT GROUP #1.
47. 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.     
						

							39 Chapter 3 - Software Loading and Configuration
48. To configure a stand-alone endpoint (e.g., a PC with Netmeeting software), click Add (+) and the
Add/Edit Phone Entry dialog box is displayed again.
49. Enter the phone number for the  stand-alone endpoint in the Station Information group Phone
Number field (e.g., 301).
50. Click inside the Description field and enter a description for the remote MultiVOIP 400/800
phone number. For example, “Human Resources Desk.”
Note: Because the H.323 endpoint is not a MultiVOIP 400/800, the Phone Directory database
ignores the Voice Channel entry, i.e., it does not matter what value is entered.
51. In the Station Identification group, select NO HUNT from the Hunt Group drop-down list,  enter
the Human Resource Desk’s IP Address (e.g., 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.
52. 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.
53. When you have finished, click OK to download the setup configuration to the MultiVOIP 400/800.     
						

							40 MultiVOIP 400/800 User Guide
54. The Checking MultiVOIP 800 dialog box is displayed.
55. Once the setup program receives a response from the MultiVOIP 400/800, the Writing Setup
dialog box is displayed indicating that the setup configuration is being written to the MultiVOIP
400/800.
56. After the setup has been written to the MultiVOIP 400/800, the unit is rebooted.
57. Check to ensure that the BOOT LED on the MultiVOIP 400/800 is Off after the download is
complete. This may take several minutes as the MultiVOIP 400/800 reboots.
58. You are returned to the Multi-Tech Installation CD screen from which you can load the Acrobat
Reader to your PC. This allows you to view and/or print the User Guide by clicking on the Install
Manuals icon.
At this time your master MultiVOIP 400/800 is configured. Proceed to the “Configuring Your Slave
MultiVOIP 400/800s” section.