Communication Channel Sample Clauses

Communication Channel. The communication channel can be either GPRS (Internet) or SMS, independent of the type of data transmitted. Typically, raw data collection should be done only with GPRS communication to ensure efficient, cost- effective collection. Alert data can be collected equally well over GPRS or SMS. Whenever the device is unable to send an alert over GPRS, ideally it should send it over SMS immediately, so that the alert reaches the server. Device configuration includes several other attributes, including sampling frequency for raw data, min/max temperature ranges, whether daily statistics are to be pushed, and so on. The expected device-to-service interaction model is as follows: 1. When the device starts up (or via any other trigger), it is expected to pull its own configuration from the server (using the Configuration Pull API). The registered vendor and device IDs have to be provided to properly identify the device and its configuration. In return, the server sends either a configuration that is global set (for all devices) or a custom one specific to this device. It should be noted that a majority of the devices will have access to GPRS. However, there will be a subset of devices in locations where no GPRS is available, and most communication of configuration would have to happen over SMS. o Typically, the configuration URL is configured in the device's factory settings, or the device can request for a configuration URL over SMS. Further, if the device is unable to get APN settings on its own, it should be able to pull it from the server as well (through an SMS based request). In case the Admin/Gateway number is not properly registered, or even changes, then the device can request such a number over SMS. o Reconfiguration of the device is possible wherein the device can pull the new configuration over GPRS, or the configuration can be pushed to the device over SMS. Even in the latter method, the server can push a SMS with just the configuration URL, so the device can pull configuration over GPRS, or the server pushes the configuration entirely over SMS (given the device has no GPRS access, and is configured to work with SMS only). o For multi-sensor devices, configuration overrides can optionally be specified on a per sensor basis. 2. Once the device is configured, it updates the server that it is configured and ready to transmit data (using the Device Ready API). It is not mandatory for devices to do so, but the service will support such an update, wherever a...