Polycom MGC Administrator Administrator's Manual page 118

Chapter 3 - Defining Network Services
3-68
Table 3-19: H.323 Dialog Box Parameters
Field
Forwarding
Gatekeeper
Use Gatekeeper
Preferred
Gatekeeper IP
Address or Name
Alternate
Gatekeeper IP
Address or Name
Description
Select this check box to enable Forwarding.
Forwarding enables the MCU to indicate the IP
address of another card for handling the incoming
call when the first card is busy. The advantage of
Forwarding is that it can be used when no
gatekeeper is involved, or when a special Service
Mode, such as Basic, is used.
Note: It is not recommended to use Forwarding when
using either Board Hunting or Pseudo Gatekeeper
modes.
•
Off – select this option if a gatekeeper is not
present in your network. In this case,
conferencing uses the IP addresses of the
endpoints and the MCU IP cards for dial-in and
dial-out connections.
• Specify – to manually define the IP address of
the preferred and alternate gatekeepers.
• Auto – to retrieve the IP address of the preferred
and alternate gatekeepers from the DHCP, if they
are defined in the DHCP.
If you have selected Specify in the Use Gatekeeper
option, enter either the gatekeeper's host name (if
the DNS server is enabled and the gatekeeper is
registered with the DNS, it translates this name into
an IP address), or IP address.
When Auto is selected, this field is disabled and the
gatekeeper's name or IP address are taken from the
DHCP.
An alternate gatekeeper is a fallback gatekeeper in
case the preferred gatekeeper is not functioning
properly. Enter the host name or IP address of the
alternate gatekeeper. If this box is left empty, but
DHCP is enabled, or when Auto is selected, the
alternate gatekeeper's details are automatically
retrieved from the DHCP.