Nortel VoIP Gateway, Configuration Manual

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178 Meridian 1 ITG / IPT
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Meridian 1 ITG / IPT
Norstar VoIP Gateway has been interoperability tested against:
• Meridian 1 ITG 2.x.26G.
• Meridian 1 IPT 3.0.53
Configuration of Meridian 1 for ITG or IPT is done using Optivity Telephony Manager (OTM) in
the ISDN IP Trunk service tab. After new settings are entered in OTM, they must be applied to the
target card by using the synchronize – transmit function. Note that if node properties are changed
(IP address for the card), the card must first be disabled before changes can be synchronized. The
card does not need to be disabled to update Dialing Plan or Card Properties.
For proper ITG / IPT interoperability, the use the following configuration guidelines:
• Set the ITG / IPT payload sizes to 30 ms. Although the VoIP Gateway is capable of a wider
selection of packetization types, setting ITG / IPT payload to 30 msec will ensure
compatibility in systems that include Business Communications Manager.
• Configure Silence suppression to the same value on both the VoIP Gateway and the ITG / IPT
(i.e. both on or both off). Silence suppression is called Voice Activity Detection on ITG / IPT.
Silence compression is set for the gateway in “Advanced Configuration / Channel Settings /
Silence Compression = Enable”.
• The profile on the ITG / IPT must be set to have the same first preferred codec as the VoIP
Gateway. The first codec should be either G.729 or G.723
CSE 1000 Gatekeeper
Before an endpoint may register with the CSE 1000 Gatekeeper it must first be added to the
gatekeeper’s configuration. Before a registered endpoint may make calls, it must have its
numbering plan information assigned within the gatekeeper configuration. All configuration is
done using the GK Admin tool accessible through a web browser using a URL of
http://
<GatekeeperIP>/gk/ . Note that before any configuration changes become part of the gatekeeper’s
active configuration, they must be committed to the active database (see Committing Gatekeeper
Configuration Changes).
Adding an H.323 Endpoint
In the Gatekeeper Admin tool:
1 Select GK Standby DB Admin.
2
Select H323 Endpoints.
3 Select Add H323 Endpoint.