Specifications

Chapter 4 Protocol-Specific Configurations
About Gatekeeper Requirements for H.323
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Cisco ATA 186 Installation and Configuration Guide
OL-1267-01
To use the H.323 security features, you must specify the level of authentication
by means of the AutMethod configuration parameter. The settings are as follows:
• 0—no authentication
• 1—Cisco registration level
• 2—Cisco admission level
Note Make sure these levels are also enabled on the gatekeeper and gateway.
About Gatekeeper Requirements for H.323
The gatekeeper must meet these requirements:
• It must be H.323- or SIP-complaint.
• It must run the applicable version of Cisco IOS software for the features and
protocol you want to use.
• It must support H.323 or SIP, but only one at a time.
Note No specific configuration is required; configure the gatekeeper as you would
for any IP phone or Voice over IP (VoIP) configuration. The default
configuration is IP routing off.
Enabling IP Routing
To enable IP routing so that you can run Cisco IOS software, enter:
ip routing