Polycom DOC2230A manual Field Description Gatekeeper

MGC-50/MGC-100 Getting Started Guide

Table 3-11: H.323 Parameters (Continued)

Field	Description
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	If you have selected Specify, enter either the
Gatekeeper IP	gatekeeper’s host name (if the DNS server is
Address or Name	enabled and the gatekeeper is registered with the
	DNS), or IP address.
Alternate	If you have selected Specify, enter the host name or
Gatekeeper IP	IP address of the alternate gatekeeper.
Address or Name
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.

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