Instruction manual

2-104
BreezeACCESS Version 4.5 Operations and Administration
Manual Revision: 1.0
Protocol Parameters
The parameters in the Protocol Parameters menu include the following
options:
! GK Parameters
" Gatekeeper Option – If set to Enable, the unit will communicate
with the Gatekeeper to resolve the destination telephone number
into the IP address and to register its own phone number and IP
address with the Gatekeeper.
The default selection is Disable.
" GateKeeper/GateWay IP Address – Specifies the IP address of
the Gateway/Gatekeeper. If the Gatekeeper Option parameter
(see above) is set to Enable, an IP address must be specified.
The default value is 0.0.0.0.
" Alternate Gatekeeper Option - Enables or disables the
Alternate Gatekeeper feature. For the purposes of ensuring
system availability, redundancy, and scalability, the Gatekeeper
may provide the RAS signaling function by utilizing multiple
physical or logical devices, referred to as Alternate Gatekeepers.
If the Alternate Gatekeeper Option set to Automatic Discovery,
the Alternate Gatekeeper IP address is received from the Primary
GK. Otherwise, in Manual Discovery mode the Alternate
Gatekeeper IP address is specified by the Alternate Gatekeeper
IP Address parameter (see below).
Valid selections: Disable, Enable (Automatic Discovery), Enable
(Manual Discovery).
Default selection is Disable.
" Alternate Gatekeeper IP Address – Sets the Alternate
Gatekeeper IP address when Alternate Gatekeeper Option
parameter (see above) is set to Manual.
The default value is 0.0.0.0.
" Registration TTL - Defines the registration Time To Live.
Registration is the process by which an endpoint informs the
Gatekeeper of its Transport Addresses and alias addresses.
Registration must occur before any calls are attempted and may
occur periodically as necessary (for example, at endpoint
power-up).
When the registration process has finished, an endpoint will no
longer send Registration Request (RRQ) messages. So, the GK
may become unavailable for the endpoint after its reset. To
prevent this possibility, a keep-alive mechanism should be
applied.
An endpoint's registration with a Gatekeeper may have a finite
lifetime. An endpoint may request a timeToLive in the RRQ
message to the Gatekeeper. The Gatekeeper may respond with