Chapter 5 – Gatekeeper Software
Multi-Tech Systems, Inc. MultiVOIP Gatekeeper User Guide
75
Network Parameter Definitions
(cont’d)
Field Name
Values
Description
Configuration Options
Alias Giving
Y/N
When an endpoint sends an RRQ message, the
Gatekeeper uses the additional aliases that were
predefined for the endpoint as online aliases. This
enables the Gatekeeper to assign terminal alias
names through which the terminal can be accessed
by others. The following are two examples of how this
option can be used:
• Example of Alias Giving for a Terminal. To make
a terminal accessible by dialing 100, add the alias
100 to the terminal’s predefined information, and
select the Alias Giving option. When the terminal
sends an RRQ message, the 100 alias becomes a
dynamic (online) alias, and all calls to 100 will be
directed to the terminal.
• Example of Alias Giving for Gateways. To make
all Gateways supply Service 80, add Service 80 to
the Service Table, add the 80 alias as predefined
information to all registered gateways, and select
the Alias Giving option. When the gateways
register, they will support Service 80.
Pre-Granted ARQ
PreGrant ALL
Y/N
Select to cause the Gatekeeper to send a pregranted
ARQ permission in the RCF message for each
endpoint that wishes to register. The pregranted ARQ
permission is given to both makeCall and answerCall
with routed mode. When an endpoint receives the
permission, it may start the call with a Setup message
or directly answer the call with a Connect message.
Line Hunting Information
Call to Out-of-
Service Supplier
Y/N
“Y” enables the sending of RAI messages. In a
normal scenario, the Gatekeeper will hunt among all
the available endpoints that have been registered
using the same tech-prefix. Each endpoint can inform
the Gatekeeper about its resource availability using an
RAI (Resource Available Indication) message. Upon
receiving an RAI message from an endpoint, the
Gatekeeper would consider that endpoint as an Out-
of-Service Supplier. The ‘Almost Out of Resources’
configuration would allow the Gatekeeper to hunt such
Out-of-Service Supplier endpoints for routing the calls.
Remove H.245
Addr in Call Hunt
Y/N
When selected, the Gatekeeper will not convey in its
outgoing setup message the H.245 address received
in an incoming setup message. This prevents H.323
terminals from establishing a channel for a call only to
refuse the call later.
Service
Configurable
Properties
Y/N
When “Y” is selected, the Gatekeeper will perform a
Priority Based Line Hunting among those destinations
registered using the same tech-prefix.
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