Specifications

MultiVOIP Gatekeeper Software Guide 6 Parameters Window
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• 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.
Call IRQ Interval
The interval, in seconds, between IRQ messages sent by the Gatekeeper to query the
status of calls. IRQ messages are sent to all online endpoints registered as dynamic
and having ongoing calls in order to verify that the calls are still ongoing. The
number you set determines the delay between two IRQ messages to the same
endpoint regarding the same call. 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 calls that are stale.
• The delay parameter relates to the interval between two IRQ messages per one
call, so the actual number of the IRQ messages the Gatekeeper creates during this
interval should be multiplied by the number of ongoing calls 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.
Default Distance
The distance allowed for endpoints which are only dynamically registered, such as an
endpoint with no predefined values. This distance is compared to the distances of the
Neighbor Gatekeepers and to the multicast distance in order to determine if an LRQ
can be sent on behalf of the requesting endpoint.
Out of Zone Distance
The distance allowed for an out-of-zone endpoint that is making a call through the
Gatekeeper. This distance is compared to the distances of the Neighbor Gatekeepers
and to the multicast distance in order to see if an LRQ can be sent on behalf of the
requesting endpoint.
Multicast Distance
The distance associated with sending an LRQ by multicast.
GK Identifier
The name of the Gatekeeper. The terminals identify the Gatekeeper by this name
during the Discovery process. The Gatekeeper responds only to Discovery requests
that either contain a matching Gatekeeper identifier or have no Gatekeeper identifier.