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Step 3: ETM® System Configuration
These instructions apply only to the 1090, 1012, and 1024 Appliances.
These three ETM System hybrid appliances support small intercampus
H.323 deployments. An H.323 VoIP Span is defined as a pair of Network
Interface Connectors (NICs) that provide the "tap" point for the Appliance.
To monitor an H.323 circuit, the ETM Appliance can be located anywhere
in a campus VoIP network, but generally is placed in locations where
signaling naturally aggregates. These locations include:
Signaling interface of a call server
LAN side of an edge or WAN router
DMZ port of a data firewall
H.323 configuration provides the Appliance with VoIP interface and call-
processing information. These settings enable the Appliance to properly
monitor calls and compare them with Policies.
The
VoIP
tab is used to identify the Span’s proxies/gatekeepers and set call
resource limits. Only traffic from the specified proxies/gatekeepers is
recognized as potential VoIP traffic.
To define proxies/gatekeepers and set call resource limits
1.
In the
VoIP Span Configuration
dialog box, click the
VoIP
tab.
H.323 Specific
Settings
VoIP Tab
