Open the web-interface of the Maxwell 3 / Basic and go to: Settings - System - Phone Web Server 



ParameterDescription

HTTP.ConnectionType

HTTP (Default)

HTTPS

HTTP_HTTPS

HTTP.Port1 - 65535: 80 (Default)
HTTP.SecurePort1 - 65535: 443 (Default)
WebUI.LogoutTimer1 - 60: 10 (Default)