Polycom MGC-100, Getting Started Manual

Page: 56 / 144

MGC-50/MGC-100 Getting Started Guide
3-32
Gatekeeper
Use Gatekeeper •
Off – select this option if a gatekeeper is not
present in your network. In this case, the MCU
uses the IP addresses for dial out and the
endpoints use the IP addresses of the MCU IP
cards for dial-in.
•
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 and the DHCP option is
enabled.
Preferred
Gatekeeper IP
Address or Name If you have selected Specify , enter either the
gatekeeper’s host name (if the DNS server is
enabled and the gatekeeper is registered with the
DNS), or IP address.
Alternate
Gatekeeper IP
Address or Name If you have selected Specify , enter the host name or
IP address of the alternate gatekeeper.
Port Displays the port number (1719) used for
communication between the MCU and the
gatekeeper.
Service Mode Select the mode in which the gatekeeper routes calls
from a card without free ports to the card with
available resources. If there is no gatekeeper, calls
that reach an IP card with unavailable resources is
rejected, unless
Forwarding is enabled.
•
Basic [Least recommended] – Each IP card in
the MCU registers independently with the
gatekeeper. The H.323 endpoint dials directly to
this card, using the cards alias as registered with
the gatekeeper. The call is routed once to the
MCU card. If the card has resources, the call is
accepted, otherwise the call is rejected.
Table 3-11: H.323 Parameters (Continued)
Field Description