CCITT Rec. U.82 (11/1988) – INTERNATIONAL TELEX STORE AND FORWARD – INTERCONNECTION OF TELEX STORE AND FORWARD UNITS
1 Scope
2 Service outline
3 International interconnection
4 Message transfer
5 Elements of inter-telex SFU message (IM) transfer procedure
6 Methods of interworking
7 Message transfer unit (MXU) formation
8 Message transfer unit (MXU) structure
9 MXU information fields
9.1 Type Identity
9.2 Message identity
9.3 Destination telex SFU identity
9.4 Delivery address(es), expected answerback(s), attention information, and delay indication
9.5 Message code indicator
9.6 Delivery information
9.7 Non-delivery notification
9.8 Combined delivery and non-delivery information
9.9 Status request information
9.10 status report information
9.11 Status
9.12 Request type
9.13 Transit identities
10 Principles of procedures and coding of inter-telex SFU messages
10.1 Use of the telex network
10.2 Use of direct circuits for asynchronous transmission
10.3 Use of public switched data networks
10.4 Use of the public switched telephone network
10.5 Use of medium speed direct synchronous circuit
ANNEX A – Examples of field coding and content of MXUs for interconnection of telex SFUs when using the synchronous data ...
A.1 Introduction
A.2 Description of data types
A.3 Format definition of telex SFU MXUs
APPENDIX I – Examples of field coding and content of MXUs for interconnection of telex SFUs when using the telex network, ...