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MultiVOIP User Guide Technical Configuration
111
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H.323 Call Signaling Parameter Defns (cont’d)
GateKeeper RAS Parameters
Field Name Values Description
RAS TTL
Value
in seconds The H.323 Gatekeeper “Time
to Live” value. As soon as a
MultiVOIP gateway registers
with a gatekeeper (allowing
the gatekeeper to control its
call traffic) a countdown timer
begins. The RAS TTL Value is
the interval of the countdown
timer. Before the TTL
countdown expires, the
MultiVOIP gateway needs to
register with the gatekeeper in
order to maintain the
connection. If the MultiVOIP
does not register before the
TTL interval expires, the
MultiVOIP gateway’s
registration with the
gatekeeper will expire and the
gatekeeper will no longer
permit call traffic to or from
that gateway. Calls in
progress will continue to
function even if the gateway
becomes de-registered.
Gatekeeper
Discovery
Polling
Interval
integer
60 - 300
The interval between the voip
gateway’s successive attempts
to connect to and be governed
by a higher level gatekeeper.
The Primary GK is the highest
level gatekeeper. Alternate
GK1 is second; Alternate GK2
is the lowest order gatekeeper.
Use Online
Alternate
Gatekeeper
List
(Y/N)
When selected, voip will seek an alternate
gatekeeper (when none of the 3 gatekeepers
shown on this screen are available) from a
list. The list will reside on the Primary
gatekeeper or one of the Alternate
gatekeepers. The gatekeeper holding the list
would download that list onto the voip
gateways within the system.