Do you want to be able to find location the target Phone even if phone is not connected to internet?
If you send SMS Command (I.e, x9f9p9 LC 1) to retrieve location over SMS, Location link will be sent back on the same number from where you had sent command even your target phone never connected to the internet SMS command will help you to find location of target phone.
For example, if you have defined SMS Command as below Command : x9f9p9 LC 1
Once you configure this way send the command x9f9p9 LC 1 to your target device number it will sent location link on number where you had sent command.
There are many SMS commands that you can use it when your target phone don't have internet connection.
For more details Visit https://www.youtube.com/watch?v=U75hnhlFZyQ