Multi-Tech Systems Mvp110 Standalone Voice/ip Geteway Quick Start Guide

							21 Configuring the MultiVOIP
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 MultiVOIP, 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 MultiVOIP
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. 
						

							MultiVOIP Quick Start Guide
22If your country/region is not the default USA, click the
Regional tab and proceed to step 25.  Otherwise, click
OK and 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.
26. The Phone Directory Database dialog box displays. 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 or, 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.”)   
						

							23 Configuring the MultiVOIP
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, clear
the Use Fast Start check box.   
						

							MultiVOIP Quick Start Guide
24
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 of
the RAS Parameters group.
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.   
						

							25 Configuring the MultiVOIP
32. Enter the unique phone number of the local device in the
Phone Number box.
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     
						

							MultiVOIP Quick Start Guide
26Database dialog box displays with your first entry.
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.     
						

							27 Configuring the MultiVOIP
Building a Proprietary Phonebook Directory
27. To build your proprietary 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 add the
“Slave” MultiVOIPs (or other H.323 endpoints).
Configuring the “Slave” MultiVOIPs is discussed later.
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” MVP 110, 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.   
						

							MultiVOIP Quick Start Guide
28The 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.
30. The Description box is optional, but can be useful in
associating the channel with the location. 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” MultiVOIP 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   
						

							29 Configuring the MultiVOIP
want the phone number to be associated with.  Or, you
can select NO HUNT if you do not 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
called or hunted until a free line is found.
Once you have assigned this entry to a Hunt Group (or
NO HUNT), you must enter the IP Address of the Master
MVP 110 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 the phone number, destination
details, and description.   
						

							MultiVOIP Quick Start Guide
30
You have completed configuration of the “Master” MVP
110. The voice channel belongs to 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.
33. 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 and the Add/Edit Phone
Entry dialog box displays again.
34. Enter the phone number for the “Slave” MultiVOIP in the
Phone Number box.
35. Click inside the Description box and enter a description
for the remote MultiVOIP 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