| 摘要 |
The inventive system and method for determining the availability of a computer network comprises a device operable to connect to at least the computer network using internet communications and using GSM, and an alarm service and/or a central server, wherein the device attempts to connect to the computer network using the internet communications and if the device fails to connect within a predetermined value, such as an amount of time or a number of tries, the device uses the GSM to notify the alarm service of the failure to connect. In one embodiment, after the device notifies the alarm service and/or central server of the failure to connect, the device continues to attempt to connect to the computer network, and if the device connects within another predetermined value, the device notifies the alarm service and/or central server of the restoral of service.
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