ISO/IEC-15506 › Complete Document History
Information technology - Telecommunications and information exchange between systems - Private Integrated Services Network Inter-exchange signalling protocol Message Waiting Indication supplementary service

Complete Current Edition:
   3RD EDITION - PRIVATE INTEGRATED SERVICES NE - April 1, 2003

Obsolete Revision Information:
   2ND EDITION CORRIGENDUM 1 - TECHNICAL CORRIGENDUM 1 2ND ED - Dec. 15, 2000
   2ND EDITION - NETWORK (PISN) - INTER-EXCHANG - March 15, 2000
   1ST EDITION - INFORMATION TECHNOLOGY - TELEC - Dec. 1, 1997