ISO/IEC-14843 › Complete Document History
Information technology - Telecommunications and information exchange between systems - Private Integrated Services Network Inter-exchange signalling protocol Call Offer supplementary service
Complete Current Edition: |
2ND EDITION - PRIVATE INTEGRATED SERVICES NE - April 1, 2003
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Obsolete Revision Information: |
1ST EDITION - PRIVATE INTEGRATED SERVICES NE - Sept. 15, 1996
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