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Chapter 3 – Related MultiVOIP Setup Parameters
Multi-Tech Systems, Inc. Avaya Communication Manager Guide 61
Network Parameter Definitions (cont’d)
Field Name Values Description
Call Mode
Direct Mode Sets the call mode to direct. In this mode, terminals send ARQ messages
to the Gatekeeper, but pass the call signaling and media control
signaling directly between them.
Routed
Mode
Sets the call mode to routed. In this mode, terminals pass admission
requests and call signaling through the Gatekeeper. Media control
information is sent directly between the terminals.
Note: Though direct calls consume fewer Gatekeeper resources, call
control is better for indirect (or routed) calls.
Configuration
Parameters
Max
Number of
Calls
The maximum number of concurrent calls allowed in the zone. This
number is fixed to 5, 10, or 15 call for MVP210-AV, MVP410-AV, and
MVP810 models respectively.
Max Total
BW (KBps)
The amount of bandwidth in Kbps that call traffic can consume at any
given time.
Registration
TO (hrs)
Registration Timeout. Sets the number of hours of inactivity after
which the dynamic registration of a terminal expires. Only the dynamic
(online) properties will be unregistered. If the endpoint is also static
(predefined), the static properties remain valid.
IRQ Interval
(sec)
The interval, in seconds, between IRQ messages sent by the Gatekeeper. IRQ
messages are sent to all online endpoints registered as dynamic in order to
verify that the endpoints are online. The number you set determines the delay
between two IRQ messages to the same endpoint. Choosing the desired delay
should take into account the following factors:
• IRQ messages add to the traffic already present over the network, and the
shorter the delay, the more IRQ messages are sent. However, the longer the
delay, the longer it takes for the Gatekeeper to detect dynamic registrations
that have ceased to be online.
• The delay parameter relates to the interval between two IRQ messages per
one endpoint, so the actual number of the IRQ messages the Gatekeeper
creates during this interval should be multiplied by the number of
endpoints registered dynamically.
• To disable the IRQ polling, set this value to zero.
• The effective IRQ interval cannot fall below three times the RAS timeout.
• IRQ messages will not be sent at a rate exceeding 20 per second.