Hello, Mukul,
Thank you for your question,
Flush command is used for momentarily data transfer to the server. Usually it is used to send a single maximum size packet.
After flush command is completed the device will continue sending the data to the server that is specified in the device's configuration.
In order to set up device for a new platform you should change your configuration settings. In the configurator's GPRS section you can find:
Server settings:
Domain (the preferred server IP address)
Port (the endpoint of the server that is opened for communications)
APN change is required only if a new SIM card is used. Configuration is performed in the same section.
GPRS settings:
APN
APN Username
APN Password
Note, that you can also configure your devices using SMS/GPRS commands.
The basic information on SMS/GPRS commands can be found in our wiki:
https://wiki.teltonika.lt/view/FMB_SMS/GPRS_Commands
In order to set up new server IP you should use SMS command "setparam parameterID". Example:
For domain change <SMS login><space><SMS password><space><setparam><space><2004><:><123.45.67.89>
For port change <SMS login><space><SMS password><space><setparam><space><2005><:><12345>
If you have any further questions, please feel free to ask,
Regards, Teltonika Support.