Multi-Tech mvp110 User Guide

With the Gatekeeper Phone Directory Database, the Gatekeeper acts as the central point for all
calls within its zone and provides call control services to registered endpoints. The Gatekeeper
performs address translation from LAN aliases to IP addresses and provides bandwidth management
where the network manager has specified a threshold for the number of simultaneous calls on the
LAN.  The H.323 ID is an alias.  The Gatekeeper may use other information as an alias such as a
URL or an e-mail address.

When the Gatekeeper Phone Directory Database option is enabled, the RAS Parameters group is
enabled with the IP address of the Gatekeeper displayed in the IP Address box.  The Port Number is
the port of the endpoint communicating with the Gatekeeper.  If this number is changed, it should only
be changed with consultation with Gatekeeper administrator.  The port numbers have to be in pairs
and controlled by the Gatekeeper.

If the H.323 Gatekeeper network supports Q.931 Fast Start servicing, then the Use Fast Start option
on all endpoints should be enabled.  The Call Signalling Port of 1720 is the port on the MultiVOIP unit
supporting the Q.931 parameters.