Multi-Tech Systems Mvp-2400/2410/3010, Mvp-210/410/810 Voice/ip Gateways User Guide

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In order for any VOIP phone call to be made, there must be both an
Inbound Phonebook entry and an Outbound Phonebook entry that
describe the end-to-end connection.  The phone station originating the
call must be connected to the VOIP system.  The Outbound Phonebook
for that VOIP unit must have a destination pattern entry that includes
the ‘called’ phone (that is, the phone completing the call).  The Inbound
Phonebook of the VOIP where the call is completed must have a
destination pattern entry that includes the digit sequence dialed by the
originating phone station.   
The PhoneBook Configuration procedure  below is brief, but it is
followed by an example case.  For many people, the example case may
be easier to grasp than the procedure steps.  Configuration is not
difficult, but all phone number sequences, destination patterns, and
other information must be entered exactly; otherwise connections will
not be made. 
						

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Phonebook configuration screens can be accessed using icons or the
sidebar menu.
Phonebook Icons Description
Phonebook Configuration
Inbound Phonebook
Entries List
Add Inbound Phonebook
Entry
Edit selected Inbound
Phonebook Entry
Outbound Phonebook
Entries List
Add Outbound
Phonebook Entry
Edit selected Outbound
Phonebook Entry 
						

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Phonebook Sidebar Menu 
						

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Phonebook Configuration Procedure
1.  Go to the PhoneBook Configuration screen  (using either the sidebar
menu, drop-down menu, or icon).
In consultation with your VOIP administrator, enter the Gateway
Name and values for Q.931 parameters and Gatekeeper RAS
parameters. Determine whether your voip system will operate with a
proxy server.  Determine which H.323 version 4 functions you will
implement. (They are not always applicable.  See field description for
each parameter.) 
						

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The table below describes all fields in the PhoneBook Configuration
screen.  
PhoneBook Configuration Parameter Definitions
Field Name Values Description
Gateway
NameY/N This field allows you to specify a name for
this MultiVOIP.  When placing a call, this
name is sent to the remote MVP3000 for
display in Call Progress listings, Logs, etc.
Q.931 Parameters
Use Fast Start Y/N Enables the H.323 Fast Start procedure.
May need to be enabled/disabled for
compatibility with third-party VOIP
gateways.
Call Signalling
Portport
numberDefault: 1720 (H.323)
GateKeeper RAS
Parameters
IP AddressIP address of the GateKeeper.
Port Number Well-known port number for GateKeepers.
Must match port number of GateKeeper,
1719.
Gateway
PrefixThis number becomes registered with the
GateKeeper.  Call requests sent to the
gatekeeper and preceded by this prefix will
be routed to the VOIP gateway.
Gatekeeper
Namealpha-
numeric
stringOptional.  The name of the GateKeeper with
which this MultiVOIP is trying to register.
H.323 ID The H.323 ID is used to register this
particular MultiVOIP with the GateKeeper.
H.323 ID is an alias entry sent to the
GateKeeper, made of alpha-numeric
characters.  For NetMeeting endpoints,
numbers are preferred over letters.  The
H.323 ID identifies the IP calling sequence
that the GateKeeper must ‘dial’ to contact
the remote VOIP. 
						

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PhoneBook Configuration Parameter Definitions
(cont’d)
Field Name Values Description
Proxy Server Parameters
Enable Proxy Y/N
Proxy Server
IP Addressn.n.n.n
where
n=0-255Network address of the proxy
server that the voip is using.
Port Number Logical port number for proxy
communications.
H.323 Version 4 Parameters
Q.931
Multiplexing
(Mux)Y/N Signalling for multiple phone
calls can be carried on a single
port rather than opening a
separate signalling port for
each call.  This conserves
bandwidth resources.
H.245
Tunneling
(Tun)Y/N H.245 messages are
encapsulated within the  Q.931
call signalling channel.
Among other things, the H.245
messages let the two endpoints
tell each other what their
technical capabilities are and
determine who, during the
call, will be the client and who
the server. Tunneling is the
process of transmitting these
H.245 messages through the
Q.931 channel. The same
TCP/IP socket (or logical port)
already being used for the Call
Signalling Channel is  then also
used by the H.245 Control
Channel.  This encapsulation
reduces the number of logical
ports (sockets) needed and
reduces call setup time. 
						

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PhoneBook Configuration Parameter Definitions
(cont’d)
Field Name Values Description
H.323 Version 4 Parameters
Parallel H.245
(FS + Tun)Y/NFS (Fast Start or Fast Connect)
is a Q.931 feature of H.323v2 to
hasten call setup as well as
‘pre-opening’ the media
channel before the CONNECT
message is sent.  This pre-
opening is a requirement for
certain billing activities.
Under Parallel H.245 FS + Tun,
this Fast Connect feature can
operate simultaneously with
H.245 Tunneling (see
description above).
Annex –E (AE) Y/NMultiplexed UDP call
signalling transport.  Annex E
is helpful for high-volume voip
system endpoints.  Gateways
with lesser volume can afford
to use TCP to establish calls.
However, for larger volume
endpoints, the call setup times
and system resource usage
under TCP can become
problematic.  Annex E allows
endpoints to perform call
signalling functions under the
UDP protocol, which involves
substantially streamlined
overhead.  (This feature should
not be used on the public
Internet because of potential
problems with security and
bandwidth usage.) 
						

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2. Select PhoneBook Modify and then select
Outbound Phone Book/List Entries.
Click Add. 
						

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3. The Add/Edit Outbound PhoneBook screen appears.
Enter Outbound PhoneBook data for your MVP3010.  Note that the
Advanced button gives access to the Alternate IP Routing feature, if
needed.  Alternate IP Routing can be implemented in a secondary
screen (as described after the primary screen field definitions below). 
						

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The fields of the Add/Edit Outbound Phone Book screen are described
in the table below.   
Add/Edit Outbound Phone Book: Field Definitions
Field Name Values Description
Destination
Patternprefixes,
area codes,
exchanges,
line
numbers,
extensionsDefines the beginning of
dialing sequences for calls
that will be connected to
another VOIP in the system.
Numbers beginning with
these sequences are diverted
from the PTSN and carried
on Internet or other IP
network.
Total Digits as needed number of digits the phone
user must dial to reach
specified destination
Remove Prefix dialed digits portion of dialed number to
be removed before
completing call to destination
Add Prefix dialed digits digits to be added before
completing call to destination
IP Address n.n.n.n
for = 0-255the IP address to which the
call will be directed if it
begins with the destination
pattern given
Description alpha-
numericDescribes the facility or
geographical location at
which the call will be
completed.
Protocol Type SIP or H.323Indicates protocol to be used in
outbound transmission.