Inmarsat C offers the opportunity to transmit Urgent calls. This can be used for example for transmission of an urgent medical request. After making the text in the editor screen this could be easily transmitted to the radio medical service of a station associated with a LES by using the Inmarsat special access code '32'. This code could be found in the list in the Appendix. For example to the Dutch LES Burum is associated to the Dutch MRCC Den Helder Rescue which offers a radio medical service. The list of MRCC's associated to a LES can be found in the Appendix. The transmission of this kind of urgent calls will normally be free of charge.

Practise on the Inmarsat C simulator

• Select 'File' in the Menubar on the top of the screen by using the arrow keys followed by 'Enter'.
• Select 'New ASCII' by using the arrow keys followed by 'Enter'.
• Now as the cursor is blinking on the top of the Text field, making it known it is an urgent call addressed to the radio medical service.
  
• When the text has been entered you can transmit it immediately (Alt,T combination to enter the transmit menu) or save it (Alt,F,S combination to enter the file save menu)
• Go to the address book by touching the spacebar.
• Add a new address at the address book using 'special' and fill in the special access code '32'.
  
• Go to Land Station using the arrow buttons and touch the 'Space Bar' and then in this case select Land Earth Station 'Burum' using the arrow keys and confirm your choice by pressing 'Enter'
• Go to '[X] Text in editor ' by using the arrow keys (by-pass this item when you wish to send your text message from the screen), touching the 'space bar' in this position will remove the mark showing '[ ] Text in editor ' and 'File:' below this field this option can be used to transmit a saved file.
  
• Go to the priority menu by using the arrow keys and select priority of message (Routine) by using the 'space bar'.
  
• Go to the request confirmation by using the arrow keys and decide if you want a delivery confirmation request, which can be selected by using the 'space bar'.
• Go to Print by using the arrow keys and decide if you want to print the file, which can be selected by using the 'space bar'.
• Go to immediate transmission by using the arrow keys and decide if you want a direct transmission, which can be selected by using the 'space bar'.
• Go to Send using the arrow keys and press 'enter' (or enter password if protected).
• The Radio Medical advice will now be transmitted to the LES and after the successful delivery you will get a confirmation, if you've chosen this option.
• During the transmission of the message the indication light 'Send' on the transceiver is blinking and the status field on the screen shows 'Sending'.

The process of delivery of messages can be monitored in the 'transmit log'.