VoIP gateway IP400 version 5.01
Page 75
Table 10
H.323 protocol options
6.1.5 Setting up a gatekeeper on another gateway
If the gatekeeper is not to operate on its own gateway, a
Remote gatekeeper
address
can be configured in the
VoIP Interfaces
area of the configuration
applet.
The gateway tries to log onto a remote gatekeeper, if its IP address is entered in
the
IP address
field. If this attempt to register is unsuccesful, the gateway tries
to log onto an alternative gatekeeper, provided an alternative address has been
entered in the
Alternate Gatekeeper
field.
It is important to enter an alternative gatekeeper IP address, particularly when
using redundant systems.
If the gatekeeper operates with a gatekeeper ID (see section 6.1.3 “The Gate-
keeper ID” from page 72), enter it into the
Gatekeeper ID
field.
The
Password
corresponds to the H.235 password required for logging on to the
remote gatekeeper.
By clicking on the
Disable dynamic signalling port
button, a fixed
Signalling
port
can be entered, which, for example, can be configured on firewall systems.
Option
Description
Generate
connected
time
Causes the gatekeeper to add a time stamp with the local
gateway time to outgoing
Connect
messages
.
Use this option if the called VoIP devices rely on the time
stamp but the call sources (e.g. the ISDN network) do not
supply it.
1. From a technical viewpoint, the H.245 protocol doesn't establish its own TCP connection,
but shares the H.225 TCP connection.