CCITT Rec. U.204 (11/1988) – INTERWORKING BETWEEN THE TELEX SERVICE AND THE PUBLIC INTERPERSONAL MESSAGING SERVICE
TABLE OF CONTENTS
1 Introduction
1.1 Scope
1.2 Service outline
2 Methods of interworking
3 Telex access to the IPM service
3.1 One-stage selection
3.2 Two-stage selection
3.3 IPM elements of service in the telex to IPM direction
3.4 Message desposit and format
3.5 Telex message delivery inside the IPM service
3.6 Follow-on call facility
4 Access from the IPM service to telex
4.1 General principles
4.2 Conversion
4.3 Message delivery to telex
5 Notification messages
5.1 Delivery notification
5.2 Non-delivery notification
5.3 Comined delivery and non-delivery notifications
6 Clearing procedures
7 Abnormal conditions
7.1 Telex-to-IPMS direction
7.2 IPMS-to-telex direction
ANNEX A
Reference