User guide

BROOKTROUT CONFIGURATION FILES
83
Key Name Description
Unit: second
Range: 0 - 32,000,000 (0 means that gatekeeper registrations do not expire; 32,000,000
seconds equals one calendar year)
Value Type: integer
Default value: 0
h323_h323IDalias
Specifies the H.323 ID of the H.323 terminal. The system uses this alias during gatekeeper
registration and call establishment. The alias identifies the name of the H.323 terminal.
Range: Up to 256 characters
Value Type: Unicode character string
Default value: <blank>
h323_local_ip_address
Specifies the transport address of the H.323 terminal. The transport address can be an IP
address or a combination of the IP address and the port number that the H.323 call control
stack uses. If you do not provide an address, the system uses the IP address of the first
Ethernet module in the system and port number 1720.
Valid values are:
xxx.xxx.xxx.xxx Configures the system to use the specified IP address for H.323
calls. Set the transport address in the form: xxx.xxx.xxx.xxx:PortNumber
<blank> Configures the system to use the address of the first Ethernet module and
port number 1720.
Value Type: dotted decimal
Default value: <blank>(uses first Ethernet module and port number 1720)
h323_max_sessions
Indicates the maximum number of concurrent H.323 calls that the host module can support
at one time. Set this value to a number that at least doubles the number of channels in the
system because the system can be tearing down a call while processing the next call.
Range: 1through 65535 (inclusive)
Value Type: decimal
Default value: 256
h323_register
Specifies an integer value that determines whether to register with an H.323 gatekeeper.
0 Does not register with an H.323 gatekeeper.
1 Registers with an H.323 gatekeeper.
Value type: integer
Default value: 0
h323_support_
alternate_gk
Specifies whether to support alternate gatekeepers. The gatekeeper receiving the
registration request from the H.323 terminal must also support alternate gatekeepers.
When the H.323 terminal sends a registration request to its primary gatekeeper, the
primary gatekeeper sends the H.323 terminal a list of alternate gatekeepers that it knows
about. If, for some reason, the H.323 terminal can no longer communicate with its primary
gatekeeper, it goes through this list of alternate gatekeepers and attempts to register with
one of them.
When the system does not support alternate gatekeepers and the H.323 terminal can no
longer communicate with its primary gatekeeper, the H.323 terminal goes through the