All traffic will end up going through Ground Control's servers. Messages that are sent from the modem are called Mobile Originated (MO). Messages that are sent to the modem are called Mobile Terminated (MT).

• Mobile Originated (MO) - messages from modem
• Mobile Terminated (MT) - messages to modem

Options for sending/receiving messages to/from the RockBLOCK modem from the outside world are covered in the RockBLOCK Web Services User Guide:

However, there are very limited options.

• For Receiving MO Messages from the RockBLOCK, options are:
  • HTTP POST to your application
  • Email delivery
• For Sending MT Messages to the RockBLOCK modem, options are:
  • HTTP POST to RockBLOCK API
  • Rock 7 CORE web interface

This guide provides examples for using the HTTP POST methods for both MO and MT message.