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Standard ECMA-133
Private Integrated Services Network (PISN) - Reference Configuration for PISN Exchanges (PINX)

2nd edition (December 1998)

The latest edition of this Ecma Standard is available here.

You can download the previous replaced "historical" edition of this Ecma Standard, free of charge:

File name Content
ECMA-133 1st edition Acrobat (r) PDF file


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