OSI/MHS Gateway Programmatic Interface (GPI) Reference Manual
Object Classes and Attribute Types
OSI/MHS Gateway Programmatic Interface (GPI) Reference Manual—522223-001
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IM-C-INTERPERSONAL-MESSAGE
IM-T-HANDLING-INSTRUCTIONS
Enables the originating military messaging user agent (MM-UA) to indicate to the 
recipient MM-UAs that:
•
Local handling instructions accompany the message.
•
The message requires manual handling by a traffic operator.
IM-T-IMPORTANCE
Identifies the importance that the authorizing users attach to the IPM. DDL names for 
the enumerated values describe the levels of importance: for example, IM-LOW. See the 
Value Characteristics column in the Table 3-67
.
IM-T-MESSAGE-INSTRUCTIONS
Enables the originating military messaging user agent (MM-UA) to indicate to the 
recipient MM-UA that message instructions accompany the message.
IM-T-MESSAGE-TYPE
Enables originating military messaging user agents (MM-UAs) to distinguish messages 
that relate to a specific exercise, operation, project or drill.
IM-T-OBSOLETED-IPMS
Specifies the IPM identifiers of IPMs that the authorizing users consider obsolete as a 
result of this IPM. 
IM-T-ORIGINATOR
Is the O/R descriptor for the originator of the interpersonal message (IPM).
IM-T-ORIGINATOR-IDENTIFIER
Enables the originating MM-UA to indicate to a recipient military messaging user agent 
(MM-UA) a reference called the originator's number. The  originating organizational 
unit uses the originator’s number.
IM-T-ORIGINATOR-PLAD
Enables the originating military messaging user agent (MM-UA) to indicate to a 
recipient MM-UA or to a ACP 127 Access Unit the plain language address, as defined 
in ACP 127, of the originator of the message. This attribute provides a consistent non-
translated reference across the domain types.
IM-T-OTHER-RECIP-INDICATOR
Enables the originator to indicate to the recipient the names of one or more recipients 
that are intended to receive the message without the use of the Military Message 
Handling System (MMHS). IM-T-PRIMARY-RECIPIENTS and IM-T-COPY-
RECIPIENTS (or the list indicated in IM-T-ADDRESS-LIST-INDICATOR) give the 










