Nortel VoIP Gateway Software Manual

Document Addendum V2.1
Norstar VoIP
Gateway Configuration Guide
This addendum describes corrections to the Norstar VoIP Gateway Configuration
Guide.

About Norstar VoIP Gateway

p18 Figure 2 Typical VoIP Gateway Installation
This diagram indicates that the internet is the IP network connecting the gateways
(via routers). The public internet should not be used for this connection. Rather,
the network should be a secure corporate intranet, ideally engineered for voice
quality of service, which could include VPN connections through the public
internet.

Configuring the VoIP Gateway

Configuring the Protocol Definition
p30 Step 4 refers to Table 4 which describes various protocol definition parameters.
The description of the following parameters should be changed as shown below:
p30
Parameter
Connection Mode
Norstar VoIP Gateway Configuration Guide Addendum – Version 2.1
Description
Select Normal if you want the VoIP Gateway to use the Normal
connection mode.
Select Tunneling to have H.245 messages added to H.225
messages during call setup.
Select Fast Start if you want the VoIP Gateway to use the Fast
Start connection mode.
Select Fast Start+Tunneling to combine the two options.
The default value is Fast Start.
The Fast Start connection mode allows a media path to be
established using H.225 without having to start the full H.245
protocol session. In some situations, you need to use fast start
in order to control call progress tones.
Tunneling allows full H.245 session establishment at the same
time that H.225 call setup occurs which can be more efficient
and facilitate interworking with some third party products.
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