|  |  | 
        
          |  |  | 
        
          | EM | 
            
              | Electronic mail |  
              | Exchange of mail by electronic means. |  
              | GS1 Description: Creating/sending/receiving of unstructured free text messages or documents using computer network, a mini-computer or an attached modem and regular telephone line or other electronic transmission media.
 |  | 
        
          | FX | 
            
              | Fax |  
              | Device used for transmitting and reproducing fixed graphic material (as printing) by means of signals over telephone lines or other electronic transmission media. |  | 
        
          | TE | 
            
              | Telephone |  
              | Voice/data transmission by telephone. |  | 
        
          | TL | 
            
              | Telex |  
              | Transmission of text/data via telex. |  | 
        
          | XF | 
            
              | X.400 |  
              | The X.400 address. |  
              | GS1 Description: CCITT Message handling system.
 |  |