Nortel VoIP Gateway, Configuration Manual, Page: 32 / 220

32 Configuring the Protocol Definition parameters
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Gateway Registration
Type Select the registration type you want to use. This defines the encoding type of the VoIP
Gateways phone numbers that is used when the VoIP Gateway registers these numbers
with a Gatekeeper.
You can select E.164, H.323-ID, E.164 & H.323-ID, TableValues, or TableValues &
H.323-ID.
Select TableValues if you want the VoIP Gateway to use the values configured in the
Gateway Registration Prefixes Table.
Select H323-ID if you want the VoIP Gateway to add the H323-ID to the destination
information.
Select E.164 if you want the VoIP Gateway to use E.164 encoding and not use the
encoding type defined in the table.
The default value is E.164.
Note: If you have entered a string in the H.323 ID box, this string is added to the gateway
registration when you select H.323-ID, E.164 & H.323-ID, or TableValues & H.323-ID.
Register as Terminal Select No if you want the VoIP Gateway to register and act as a standard gateway.
Select Yes if you want the VoIP Gateway to register and act as an H.323 terminal with
multiple aliases (up to 4). Also, in all gateway messages, the terminal type value is set to
terminal.
The default value is No.
Enable Mapping of Alias
Number Select Yes to allow the Gatekeeper to change the gateway destination number using the
Alias parameter in the ACF message.
Select No if you do not want the Gatekeeper to change the gateway destination number.
Gatekeeper Timers
Registration Time Enter the time in seconds between registrations to the Gatekeeper.
The default Registration Time is 60 seconds.
Note: This setting must match the configuration settings on your Gatekeeper.
RAS Response Timeout Enter the time in seconds that the VoIP Gateway waits for a RAS response from the
Gatekeeper. When this time expires, the VoIP Gateway retransmits the RAS message.
The default time is 2 seconds.
Note: This setting must match the configuration settings on your Gatekeeper.
Number of RAS
retransmission Enter the number of times that the VoIP Gateway retransmits the RAS message to the
Gatekeeper, before the VoIP Gateway decides that the Gatekeeper is not responding.
If you have enabled Gatekeeper Redundancy, the VoIP Gateway will then try the next
Gatekeeper.
If none of the Gatekeepers are responding and you have enabled Fallback to internal
routing, the VoIP Gateway will start using the internal Telephone to IP Routing table.
The default number of retransmissions is 2.
Note: This setting must match the configuration settings on your Gatekeeper.
Time between GK retries Enter the time in seconds before the VoIP Gateway tries to contact the list of Gatekeepers
again.
The default time is 60 seconds.
Note: This setting must match the configuration settings on your Gatekeeper.
Table 4 Protocol Definition parameters (Continued)
Parameter Description