•-ipchange: If user uses NAT device which support multiple public IP address, and IP Phone enable IP change function, IP Phone will register to Gatekeeper with the public IP that IP Phone uses but not the IP NAT uses.
•-http: set http port. User can configure IP Phone via web browser, default http port is 80, if port 80 is not available or user has more than 1 IP Phone behind NAT, http port can be changed to another available port.
5.7 [time] command
When sntp server is established as well as the sntp function of SP5100 IP Phone is enabled, type time command should show the current time what is retrieved from the assigned sntp server.
Note: Please refer to the [ifaddr] command to configure sntp server.
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