CCITT Rec. X.420 (11/1988) – MESSAGE HANDLING SYSTEMS: INTERPERSONAL MESSAGING SYSTEM
TABLE OF CONTENTS
0 Introduction
1 Scope
2 References
3 Definitions
4 Abbreviations
5 Conventions
5.1 ASN.1
5.2 Grade
5.3 Terms
6 Overview
7 Interpersonal messages
7.1 Heading field component types
7.1.1 IPM identifier
7.1.2 Recipient specifier
7.1.3 O/R descriptor
7.2 Heading fields
7.2.1 This IPM
7.2.2 Originator
7.2.3 Authorizing users
7.2.4 Primary recipients
7.2.5 Copy recipients
7.2.6 Blind copy recipients
7.2.7 Replied-to IPM
7.2.8 Obsoleted IPMs
7.2.9 Related IPMs
7.2.10 Subject
7.2.11 Expiry time
7.2.12 Reply time
7.2.13 Reply recipients
7.2.14 Importance
7.2.15 Sensitivity
7.2.16 Auto-forwarded
7.2.17 Extensions
7.3 Body part types
7.3.1 IA5 text
7.3.2 Voice
7.3.3 G3 facsimile
7.3.4 G4 Class 1
7.3.5 Teletex
7.3.6 Videotex
7.3.7 Encrypted
7.3.8 Message
7.3.9 Mixed-mode
7.3.10 Bilaterally defined
7.3.11 Nationally defined
7.3.12 Externally defined
8 Interpersonal notifications
8.1 Common fields
8.1.1 Subject IPM
8.1.2 IPN originator
8.1.3 IPM preferred recipient
8.1.4 Conversion EITs
8.2 Non-receipt fields
8.2.1 Non-receipt reason
8.2.2 Discard reason
8.2.3 Auto-forward comment
8.2.4 Returned IPM
8.3 Receipt fields
8.3.1 Receipt time
8.3.2 Acknowledgment mode
8.3.3 Suppl receipt info
9 Overview
10 Primary object types
10.1 Interpersonal messaging system user
10.2 Interpersonal messaging system
11 Primary port types
11.1 Origination
11.2 Reception
11.3 Management
12 Abstract operations
12.1 Origination abstract operations
12.1.1 Originate probe
12.1.2 Originate IPM
12.1.3 Originate RN
12.2 Reception abstract operatons
12.2.1 Receive report
12.2.2 Receive IPM
12.2.3 Receive RN
12.2.4 Receive NRN
12.3 Management abstract operations
12.3.1 Change auto-discard
12.3.2 Change auto-acknowledgment
12.3.3 Change auto-forwarding
13 Abstract errors
13.1 Subscription error
13.2 Recipient improperly specified
14 Other capabilities
15 Overview
16 Secondary object types
16.1 Interpersonal messaging system user agent
16.2 Interpersonal messaging system message store
16.3 Telematic agent
16.4 Telex access unit
16.5 Physical delivery access unit
16.6 Message transfer system
17 Secondary port types
17.1 Submission
17.2 Delivery
17.3 Retrieval
17.4 Administration
17.5 Import
17.6 Export
18 User agent operation
18.1 State variables
18.2 Performance of origination operations
18.2.1 Originate probe
18.2.2 Originate IPM
18.2.3 Originate RN
18.3 Performance of management operations
18.3.1 Change auto-discard
18.3.2 Change auto-acknowledgment
18.3.3 Change auto-forwarding
18.4 Invocation of reception operations
18.4.1 Receive report
18.4.2 Receive IPM
18.4.3 Receive RN
18.4.4 Receive NRN
18.5 Internal procedures
18.5.1 Auto-discard
18.5.2 Auto-acknowledgment
18.5.3 Auto-forwarding
19 Message store operation
19.1 Creation of information objects
19.2 Maintenance of attributes
19.3 Notification of non-receipt
19.4 Auto-forwarding
19.5 Manual forwarding
20 Message contents
20.1 Content
20.2 Content type
20.3 Content length
20.4 Encoded information types
21 Port realization
22 Conformance
22.1 Origination versus reception
22.2 Statement requirements
22.3 Static requirements
22.4 Dynamic requirements
ANNEX A – Heading extensions
A.1 Incomplete copy
A.2 Languages
ANNEX B – Extended body part types
ANNEX C(to Recommendation X.420)Message store attributes
C.1 Summary attributes
C.2 Heading attributes
C.3 Body attributes
C.4 Notification attributes
ANNEX D – Reference definition of object identifiers
ANNEX E – Reference definition of abstract information objects
ANNEX F – Reference definition of functional objects
ANNEX G – Reference definition of abstract service
ANNEX H – Reference definition of heading extensions
ANNEX I – Reference definition of extended body part types
ANNEX J – Reference definition of message store attributes
ANNEX K – Reference definition of upper bounds
ANNEX L – Support of the interpersonal messaging service
L.1 Support of recipient specifier components
L.2 Support of heading fields
L.3 Support of body aspects
ANNEX M – Differences between CCITT Recommendation and ISO Standard
ANNEX N – Summary of changes to 1984 specification