H.323 Keep Alive Timer

The H.323 Keep Alive Timer feature gives the user the ability to control the Time To Live parameter in the Registration Request (RRQ) message in RAS. The Time To Live parameter configures the number of seconds that the IMG 2020 should be considered active by the gatekeeper. After the Time To Live parameter has expired, the H.323 endpoint will need to re-register with the gatekeeper. The Time to Live parameter is normally controlled by the gatekeeper but by configuring the Time to Live parameter, the IMG 2020 has some control over the parameter. Once configured, the Time To Live parameter is sent from the IMG 2020 (H.323 Endpoint) to the gatekeeper in the Registration Request (RRQ) message when registering with the gatekeeper. The gatekeeper looks at this value and either accepts the received value or rejects it and sends back an overridden Time to Live value in the Registration Confirm (RCF) message. The Time to Live parameter value is entered in seconds and ranges from 0 to 655 seconds. Click in the Time To Live field and enter the parameter value in seconds. The H.323 Keep Alive timer is configured in the Time to Live field of the External Gatekeeper object.