To use the default device tracker gateway, include the name Default-DeviceTracker in the second column of the result set of the request_cursor.

A device tracker gateway utilizes automatically-tracked IP addresses, phone numbers, and public wireless network provider IDs to deliver messages through either a UDP or SMTP gateway. Your configuration defines which UDP gateway and which SMTP gateway are to be used by your device tracker gateway. You can also control tracking requirements for messages sent through this gateway.