Multi-Tech Systems MVP-2410, MVP-2400, MVP-3010 manual 508

Embedded Gatekeeper MultiVOIP User Guide

Network Parameter Definitions (cont’d)

Field Name	Values	Description
Configuration
Parameters
Registration		Registration Timeout. Sets the number of
TO (hrs)		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		The interval, in seconds, between IRQ
(sec)		messages sent by the Gatekeeper. IRQ mes-
		sages 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.

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