Startup and registration 23
Figure 3 "Gatekeeper-routedcall" (page23) represents a Gatekeeper-routed
call. The destination IP address provided by the Gatekeeper is the
Gatekeeper’s IP address. All messages are routed through the Gatekeeper.
Figure 3
Gatekeeper-routed call
Startup and registration
On system startup, the IP Trunk3.01 (and later) Leader card is established,
based on whether the primary and backup Leaders come up, in what
sequence, and how quickly. This operation remains unchanged from prior
releases. It provides all necessary information to the follower cards.
Part of the information in the Dial Plan table is the Gatekeeper registration
information, which includes three main fields: the local node H.323 identifier
(node name), a flag indicating registration handling, and a third field for
future development.
The registration handling has two potential flag values as follows:
•0 – Register the IP addresses of all cards (Leader 0, Leader 1, and
Follower cards) in the IP Trunk3.01 (and later) node.
•1 – Each card must register individually, if required. When registering
with a CS 1000M Gatekeeper, IP Trunk3.01 (and later) registers only
the node address. No other IP addresses are sent to the Gatekeeper
in the Registration Request (RRQ) message.
Nortel Communication Server 1000
IP TrunkFundamentals
NN43001-563 02.01 Standard
Release 5.5 21December 2007
Copyright© 2007, Nor tel Networks
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